Preparing a collection for valuation

Guides · 5 September 2026

A valuation is an opinion about specific items, and it can only be as good as what it is given to look at. An unsorted box takes hours to read and gets valued cautiously; a sorted, listed and photographed collection gets read properly. None of this requires expertise – it requires order. And the single most useful rule is negative: do not improve anything before showing it.

Six steps that make a valuation possible

1. Sort by category first. Coins, banknotes, stamps, covers, badges, postcards – separate physically. Mixed material is the commonest reason a collection reads as a job lot.
2. Then sort within each. Country, denomination or issue, then year. Sorting alone reveals sets, runs and gaps, and those are what a valuation is built on.
3. Separate duplicates. A run of the same item is bulk; one good example plus a duplicates box is legible. Do not throw duplicates away – just move them.
4. List what is there. A simple table – category, description, year or catalogue number if you have it, quantity, notes. Catalogue numbers can be found for free in an open archive rather than a price guide.
5. Photograph the key items. Both sides, square, even light – the method is in the guide to photographing a collection. Photographs let someone give a preliminary view without handling anything.
6. Note the provenance. Where it came from, who assembled it, when it was last added to. Sometimes the paperwork is worth more than any single item.

Four things not to do beforehand

• Do not clean anything. Cleaned coins, pressed banknotes and washed stamps are all described as such, permanently – see the guides to cleaning coins and banknote condition.
• Do not break sets up. A complete series, a full sheet, a stamp on its original cover – all are worth more whole. Splitting them to look tidier removes the reason they mattered.
• Do not remove stamps from covers or coins from original packaging, cases and certificates. The packaging is part of the object.
• Do not repair anything. Tape, glue and touched-up edges are worse than the damage they cover, as in the guide to telling an original from a copy.

What a valuation actually reflects

Three things carry more weight than age: what the item is, what condition it is in, and how complete the group is. That is why condition guides exist for each material – coins, banknotes, stamps – and why the same design can be read very differently at two levels of wear. The subject of the picture, which is what most people look at first, usually matters least on common material.

It also means a collection is rarely uniform. Most boxes contain a small number of items that carry the interest and a large number that are simply common – and knowing which is which is exactly what sorting and listing produce.

Do the homework yourself first

Identification is free. 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 – enough to attach a name and a number to nearly everything before a conversation starts. Going in with a list and photographs changes what that conversation is about.

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

If the collection was inherited

Start slower. Nothing needs deciding immediately, and the first job is to stabilise storage so the collection stops changing while decisions are made. That case has its own guide – what to do with an inherited collection.