How to Research a Bottle's History

Turn a bottle over: the glass beneath it may hold a clue to its age. Whisky.Auction describes changes in United Glass base codes through the 1960s to 1980s that can help with dating.[8] The trick is to read that clue alongside the label, closure and packaging, then follow the evidence into published records and archives.

Keep three questions separate throughout: what the bottle says, what the records support, and whether the bottle itself has been professionally assessed.

Start with the bottle, not the story

Photograph before you interpret. Capture the front and back labels, neck, closure, glass base and any accompanying packaging, then transcribe the wording exactly. Keep observations separate from explanations: “code visible on base” records something you can see; a proposed bottling year needs supporting evidence.

Whisky.Auction recommends considering label design, wording, closure, condition and bottle code together. Dating rests on the relationship between these features, rather than one apparently revealing mark.[8]

Next, write down the question you want answered. Identifying an expression, establishing an approximate bottling period, tracing a company name and investigating authenticity are different tasks. A focused question also makes an archive enquiry easier to answer. Ask about the particular wording, company or record you have found, rather than requesting the bottle's entire history.

Use a simple research record:

Keep your photographs with the record so another reader can check the transcription. Mark an unclear character as unclear. Choosing the reading that best fits your theory only makes the next stage less reliable.

Research a bottle's history through the right records

Match the record to the question. A label approval illuminates label history; a company filing illuminates corporate history. Each can strengthen part of your account without settling everything about the bottle.

US label approvals

For a bottle carrying a US label, start with the Alcohol and Tobacco Tax and Trade Bureau's Public COLA Registry. It provides access to Certificates of Label Approval issued on TTB F 5100.31, including approved, expired, surrendered and revoked COLAs. No registration or password is required.[1]

Label images are available from 1999 onwards, usually 48 hours after approval. Earlier COLAs provide data only, and searches before 1996 may be incomplete.[1] These boundaries matter when deciding what a search result, or the absence of one, tells you.

Compare the record with your photographs and save the relevant result. Record it as a matching or related label approval: it concerns the label, not authentication of the physical bottle. An unsuccessful search in an incomplete registry leaves the question open; it does not establish that the label never existed.

UK trade marks and company records

A name or device on the label can lead you to the UK Intellectual Property Office's trade mark service. Searches work by number, owner, keyword, phrase or image, and the service's stated purposes include finding out who owns a trade mark.[5] Record exactly which mark you searched.

Companies House opens a different trail: registered addresses, incorporation dates, current and resigned officers, document images and previous company names. It also provides insolvency information and mortgage charge data.[6]

Previous names and document images can be particularly useful leads. Keep those corporate findings alongside, but separate from, your bottle description. A company with the same name gives you something to investigate; the remaining connections still need to be established.

Follow the producer and bottler trail

The producer's own history can supply the names, premises and documents that turn a broad search into a focused enquiry. Cadenhead's, for example, publishes an account naming the firm's people and premises from 1842 onwards.[12] Retain that attribution when drawing on the bottler's account.

First establish whose history you need. A distillery and a bottler play different roles, and that distinction determines where to direct your research. Our guide to distillery and independent bottlings explains the difference, helping you avoid reading an assumed production history into a name on the label.

Mine published histories for specific leads rather than adopting their whole narrative. Extract the name, date or premises relevant to your question, attach the source, and note what remains unanswered. The result should be a shorter, sharper list of questions for the next stage, with a clear reason for asking each one.

Use archives with a specific question

Diageo's archive holds material from the eighteenth century to the present, according to the company. Although it is not open to the public, Diageo invites email enquiries about the history and heritage of its spirit brands.[2] You can therefore make an enquiry without having public access to the collection.

Send the exact brand wording, clear photographs and a concise question. Ask whether the archive holds relevant material, rather than assuming it provides individual bottle identification. Keep any reply with your research record, making clear which points come from the archivist and which are your interpretation.

University collections offer another route into the drinks industry's history. The University of Glasgow's published sources guide lists Bunnahabhain as UGD 218, Glenglassaugh as UGD 219, covering 1875 to 1986, and Glenrothes-Glenlivet as UGD 220.[4]

The guide also lists Tamdhu-Glenlivet, Robertson & Baxter and William Teacher & Sons. D. Johnston & Co records associated with Laphroaig cover approximately 1826 to 2001. Enquiries go to the Duty Archivist, and the guide points to more detailed lists in the searchroom and online catalogue.[4]

Use these collection references in your enquiry. Before planning research around a collection's name and date span, ask about the particular records you need. Save both the collection reference and any individual document reference supplied in response: those details allow you or another researcher to return to the evidence.

Treat codes and warrants as supporting clues

A code becomes useful once you know its system. The Scotch Malt Whisky Society explains its number.number format as a distillery code followed by a cask number, and identifies 1.1 and 1.2 as Glenfarclas.[11] This explanation belongs to that bottler's system; unrelated bottles need their own sources.

For other markings, begin with bottle and batch codes. Transcribe the mark, identify the system, then interpret it using a source that explains how it works. A number need not represent a date.

Alongside Whisky.Auction's account of United Glass codes, WhiskyAuction.com publishes a table connecting base codes with glass makers and date ranges.[8][9] Both are auction houses' reference accounts. Compare their guidance with the bottle's other features to build a proposed period.

UK royal warrants also offer a period clue. The Royal Warrant Holders Association says warrants are usually granted for up to five years and lapse when a Grantor dies, with continued use permitted for up to two years.[10] Those rules make a warrant useful context, rather than a standalone bottling date.

Keep historical identification separate from authentication

Authentication reaches beyond finding a matching label. Whisky Auctioneer describes its assessment of suspect bottles in stages: physical examination, research, provenance and expert opinion. Physical checks include labels, packaging quality, unusually high fill levels and damaged or tampered closures; research includes comparison with other examples.[7]

These are the auction house's procedures, rather than a home authentication checklist. Their value for the researcher is in showing how distinct kinds of evidence work together. A label comparison, an account of where the bottle came from and an expert assessment each answer a different part of the question.

Whisky Auctioneer says it rejects bottles it considers questionable, problematic or obviously not authentic.[7] Record an auction description as an assessment attributed to the auction house, rather than independent proof. If authenticity is your central question, seek professional assessment instead of relying on photographs and online comparisons alone.

Write a conclusion that another person can check

End with a conclusion your evidence can carry. Give the bottle's name as transcribed, explain the proposed period or identification, and list the records supporting it. Set out unresolved points separately, where a reader can see them.

Keep observed details, published statements and your own conclusions visibly distinct. When two clues conflict, preserve that disagreement and identify the next record needed to investigate it. There is no need to force a complete story from incomplete evidence. The most useful bottle history is one whose reasoning another researcher can follow, check and build upon.

Where to go next

• How to Date an Old Whisky Bottle: establish a bottling period.
• Core Range, Limited Release and Discontinued Whisky: place an expression within a range.
• Store Picks and Private Barrel Selections Explained: understand the terminology of retailer and private selections.

Sources

[1] Alcohol and Tobacco Tax and Trade Bureau. Public COLA Registry. Web guidance, edition not specified; checked November 2026. https://www.ttb.gov/online-services/public-cola-registry

[2] Diageo. The archive. Producer's account, edition not specified; checked November 2026. https://www.diageo.com/en/our-business/our-history/the-archive

[4] University of Glasgow Archive Services. Drinks Industry: Sources. Published sources guide, edition not specified; checked November 2026. https://www.gla.ac.uk/media/Media_439675_smxx.pdf

[5] Intellectual Property Office, GOV.UK. Search for a trade mark. Service guidance, edition not specified; checked November 2026. https://www.gov.uk/search-for-trademark

[6] Companies House, GOV.UK. Get information about a company. Service guidance, edition not specified; checked November 2026. https://www.gov.uk/get-information-about-a-company

[7] Whisky Auctioneer. Counterfeit Policy. Auction house's account, edition not specified; checked November 2026. https://whiskyauctioneer.com/counterfeit-policy

[8] Whisky.Auction magazine. How To Date A Bottle, Part 2. Auction house's account, edition not specified; checked November 2026. https://magazine.whisky.auction/how-to/how-to-date-a-bottle-part-2/

[9] WhiskyAuction.com. Whisky Glass Bottle Codes at the bottom. Auction house's reference table, edition not specified; checked November 2026. https://www.whiskyauction.com/node/1911925

[10] Royal Warrant Holders Association. Frequently Asked Questions. Web guidance, edition not specified; checked November 2026. https://www.royalwarrant.org/frequently-asked-questions

[11] Scotch Malt Whisky Society. What's in a name, or a number? Bottler's account, edition not specified; checked November 2026. https://smws.com.au/whats-in-a-name-or-a-number/

[12] Cadenhead's. The History of Cadenhead's. Bottler's account, edition not specified; checked November 2026. https://www.cadenhead.scot/about-cadenheads/cadenhead-history/

This desk-researched guide was prepared from the site's verified fact sheet, separating official record services, archive guides and attributed company accounts.

Last checked: November 2026