Cataloguing a collection so it survives you

Guides · 6 September 2026

A collection without a list is a box of objects. With a list it becomes something you can search, compare, insure and pass on. The work is smaller than it sounds: nine columns cover almost any material, and the discipline that matters is not detail but consistency – the same fields, filled the same way, every time.

The nine columns

1. Number. Your own running number, unique and never reused. This is the anchor for everything else.
2. Category. Coin, banknote, stamp, cover, badge, postcard. Broad on purpose.
3. Description. What it is in plain words, as you would say it aloud.
4. Country and year. Or issue period if the exact year is unknown – leave it blank rather than guessing.
5. Catalogue reference. The standard number if you have one. Free to find in an open archive.
6. Condition. A short observation, not a label: "soft on high points, fields clean" beats a letter grade you cannot defend.
7. Quantity. One line per type, with duplicates counted rather than listed separately.
8. Location. Which box, page or tray. This is the column people skip and then regret.
9. Notes. Where it came from, when it entered the collection, anything unusual.

The identifier goes on the container, never the item

Write the number on the envelope, the holder or the album slot – never on the object itself. Ink on a stamp, a scratched number on a coin, adhesive labels on a badge: all are permanent damage and all reduce what they were meant to record. If an item has no container, that is the first thing to fix, using the materials described in the guides to storing metal and storing paper.

Choosing a format

• Paper notebook. Works forever, needs no software, cannot be searched. Fine for small collections.
• Spreadsheet. The practical default: sortable, searchable, exportable and readable in fifty years if you keep a plain CSV copy alongside it.
• Dedicated software. Convenient while it exists. Only use one that exports plain data, or the catalogue dies with the program.
• Photographs as the record. Not a substitute for a list, but the pair together is what makes remote identification and valuation possible, as in the guide to photographing a collection.

Rules that keep it usable

1. One item, one row. Resist the urge to describe a group in a single line; groups get split later and the line stops matching.
2. Never reuse a number. If an item leaves the collection, mark the row rather than deleting it.
3. Write for a stranger. Abbreviations you invented make the list unreadable by anyone else, including you in ten years.
4. Record uncertainty as uncertainty. "Year unclear" is information; a guessed year is misinformation that gets copied forward.
5. Back it up somewhere else. A catalogue stored only next to the collection is lost in the same event as the collection.

Where the numbers come from

Catalogue references do not require buying a price guide. The open archive holds 80,472 stamp images from 271 countries, 6,382 Soviet stamp issues with catalogue numbers, 855 coins, 635 banknotes and 3,332 badges, most shown clearly enough to match against. Fill the reference column as you go: a list with numbers is worth several times one without, because it can be checked by anyone.

Open the sections: stamps, coins and banknotes, badges.

Why it matters most when you are not there

A catalogued collection can be understood by someone who did not build it – a family member, an appraiser, a museum. An uncatalogued one is read as bulk, and that is exactly what happens to most collections eventually. The preparation steps in the guide to preparing a collection for valuation all start from the list.