Proof and circulation strikes: telling them apart

Coins · 7 September 2026

Most commemorative designs exist twice: as an ordinary coin made for circulation and as a collector striking made for sets. The second is produced from polished dies on polished blanks, struck slowly and often more than once, which gives it mirror-like fields and a matt, frosted design. The difference is easy to see once you know what to look at – and it matters, because the two are separate catalogue entries with very different survival rates.

How each is made

• Circulation striking. Ordinary dies, ordinary blanks, high speed, one blow. The surface has a uniform satin texture and the coin goes straight into bags and then into pockets.
• Collector striking. Polished dies and polished blanks, slow presses, frequently two or more blows so metal fills the finest detail. Fields come out mirror-bright; the raised design is often deliberately frosted for contrast.

The four signs

1. The fields. A mirror surface that reflects like glass, against the even satin of a circulation coin. This is the single most reliable sign.
2. The relief. Frosted, matt design standing against the mirror – the contrast collectors call cameo. Circulation coins have no such contrast.
3. The rims and edges. Squarer, sharper, fully formed, because the slow strike lets metal reach the extremities.
4. The detail. The smallest elements – hair, lettering serifs, the awns in an emblem – are complete rather than softened.

Why proofs are fragile

A mirror field records every contact. A fingerprint etches in, a wipe leaves fine parallel lines, and a slide across a table is instantly visible in a way it never would be on a satin surface. That is why a mishandled collector striking often reads worse than an honest circulation coin: the damage sits on the part that made it special. The handling rules are the same as everywhere else and matter more here – hold by the edge, never wipe, never clean, as in the guide to cleaning old coins.

What they are not

• Not a grade. Strike quality is how the coin was made; condition is what happened afterwards, and both are recorded separately, as set out in the guide to coin condition.
• Not automatically scarcer. Collector strikings were made in smaller numbers but almost all survive; circulation coins were plentiful and mostly wore out. Which is scarcer in top condition depends on the issue.
• Not a polish. A circulation coin buffed at home is not a proof and never resembles one: polishing removes metal and leaves scratches, while a proof surface was formed by the die.
• Not always both. Many issues exist in only one form, and knowing which is part of identifying the coin.

Where this shows in the archive

The open archive holds 855 Soviet coins, 523 of them dated, and the commemorative rouble programme of 1965–1991 – 54 catalogue types represented by 199 images – is the clearest place to see the pattern: most types appear from both sides and in more than one striking, which is exactly why the image count is so much larger than the type count. The programme itself is described in the guide to commemorative coins year by year.

Open the sections: coins and banknotes, badges.

Storage

• Keep collector strikings in their original capsules or cases whenever they still have them – the packaging is part of the object.
• Never store them loose with circulation coins; one contact is enough.
• Photograph them with soft, diffuse light: a mirror field turns a hard lamp into a white blank, the problem solved in the guide to photographing a collection.
• Record the striking alongside the year and mint in your list, as in the guide to cataloguing a collection.