The Field Manual

The Coin Check

How a challenge is issued, what happens if you are caught without yours, and where any of this came from.

What a coin check is

A coin check is a challenge. Someone produces their coin, and everyone present has to produce theirs. Whoever cannot, loses. It is a bar game with a hundred local variations and no governing body, which is exactly why it survives — every unit runs it slightly differently and every unit is certain theirs is the real version.

The stakes are small on purpose. The point was never the drink.

1. The challenge is issuedTraditionally by rapping the coin on a hard surface — a bar, a table. If it is loud enough to be heard, it counts. If you drop your coin and it rings, most people will tell you that counts too, and that you have just challenged everyone in the room by accident.
2. Everyone present respondsYou produce your coin. Not a photo of it, not one in a bag in the car. On you.
3. The lowest hand buysIf anyone fails to produce, they buy a round for the challenger. If everyone produces, the challenger buys instead. That reversal is the whole balance of the game — it is what stops people challenging constantly.
4. Coins are handed backA coin set down is a coin that has been surrendered. Traditionally, if you hand someone your coin and they set it down, they now owe you.

The rules people argue about

How far you can reach for it. The most common version: you get one step. If your coin is within a single step of where you stand, you may retrieve it. Beyond that, you lost. Other units say arm's length. A few say if it is not physically on your person, you lost, full stop.

Whether it has to be your coin. Generally, any coin you were legitimately given counts. Buying a coin to win coin checks is understood to be missing the point entirely, and in most circles it is worse than losing.

Dropping it. Deliberately dropping a coin to start a check is fine. Accidentally dropping one is also, by most readings, a challenge — you just issued one, and now you buy if everyone answers. This is treated as very funny by everyone except the person who dropped it.

Where the coin can live. Drilling a coin for a keychain, or setting one in a belt buckle, is a live argument. One camp says it is defacing something that was given to you. The other says a coin you actually carry is a coin doing its job. Both camps agree that a coin in a drawer is the real failure.

Where the coins came from

Nobody actually knows, and anyone who tells you otherwise is repeating a story rather than a source. What survives is a handful of competing accounts, none of them documented at the time.

The pilot and the pouch. The version told most often: a wealthy lieutenant in the First World War has bronze medallions struck for his squadron. One pilot wears his in a leather pouch around his neck. He is shot down, captured, escapes, and reaches a French outpost — where, with no papers, he is taken for a saboteur and nearly executed. The medallion is the only thing on him identifying his squadron. Someone recognises the insignia. It is a very good story and there is no contemporary record of it.

The occupation and the pfennig. A quieter account, and a more plausible one: post-war units in occupied Germany run "pfennig checks" in bars. Produce a pfennig or buy the round. Someone eventually substitutes a unit medallion, and the modern game is the same game with a better coin.

The part that is documented. The custom becomes widespread and well recorded from the Vietnam era onward, spreads across every branch, and then well past the military entirely — police and fire departments, federal agencies, charities, corporate teams, the President's office.

Keeping Them

Coins are handled, and handling is what wears them. Almost all of the damage is avoidable and none of the fixes are expensive.

What actually damages a coin

Fingerprints etch. It takes years and it is not dramatic, but it is permanent, and it happens most to the coins you handle most — which are the ones you care about. Hold a coin by its edge.

Coins scratch each other. A tin or a drawer of loose coins grinds every face against every other face, and the scratch always lands somewhere it shows. Sleeves or capsules cost less than one coin.

Enamel fades. Colour goes before metal does, so bright enamel coins are the ones worth keeping out of direct light.

Do not clean them

This is the one that costs people real value. Polishing strips the patina, leaves microscopic scratches across the whole face, and cannot be undone. A dull coin is a coin with its history on it. If something is genuinely stuck to it, warm water and a soft cloth, patted dry — never rubbed, never a dip, never a polish.

The Words

The vocabulary, so a description means the same thing to the person reading it.

1. Obverse and reverseFront and back. The obverse is the side carrying the primary device — usually the unit crest or the seal. Muster labels the two photo slots this way.
2. DeviceThe main figure on a face: the crest, the eagle, the aircraft. Distinct from the field, which is the background it sits on.
3. FieldThe flat background of a face. Most enamel work is field, not device.
4. EdgeThe rim. Plain, reeded (the fine vertical ridges), rope, or occasionally engraved with a name or a number.
5. Unit coinIssued by a unit, generally to anyone assigned to it. The common kind.
6. Commander's coinGiven personally, at the giver's discretion, for something specific. Rarer, and the reason the story matters more than the coin.
7. SerialisedNumbered as part of a limited run — "042 of 250". Worth recording; Muster keeps serial numbers off every public page.