20 Mark (Pattern)

In January 1871 the German states were welded into a single empire. Almost immediately, the new nation faced a plumbing problem: it had inherited a patchwork of thalers, gulden, and kreuzer, each state minting its own silver. A modern empire needed one currency, and it chose gold. The Mark was born, backed by gold and issued in a common standard across every kingdom, grand duchy, and free city.

A brand-new coinage does not arrive fully formed. Before the definitive 20 Mark gold piece was approved and struck by the millions, the mint made trial pieces — patterns, or in German Proben — to test how a design and a metal standard would actually look struck in gold. This is one of those trials. It is not a coin that ever circulated. It is a coin the empire was still arguing with itself about.

That is what makes it worth a stranger's attention. Most 20 Mark gold coins are common bullion; tens of millions were made. This one is the opposite: a single experimental object from the weeks when the money of a great power was still being decided.

The piece is uniface — struck on one side only, the other left plain. That alone tells you it is a test rather than a finished coin. The struck face carries the small imperial eagle of the early empire (the Reichsadler), the spread-winged bird that would sit on the reverse of every state's gold coinage. Beside it is the number 900: the fineness mark, telling the metallurgist and the collector that the alloy is 90 percent gold.

Read together, the eagle and the 900 are exactly what a pattern is for. This was not testing a portrait or a slogan. It was proving the empire's chosen emblem and its chosen gold standard on a real planchet, at the correct weight and diameter, before the design was locked. The blank reverse is the unfinished half of the argument — the portrait side, the state's own king, had not yet been fixed onto this trial.

For a collector, the appeal is the rarity and the moment. A finished 1871 20 Mark tells you what Germany decided. A pattern like this tells you Germany was still deciding.

Patterns sit in a different collecting field from circulation coins. A regular 1871 20 Mark is judged mostly on grade and, at bullion level, on its gold content. A pattern is judged on scarcity and on the story it carries — and this one carries the founding of a national currency.

Numista ranks the type very high on its rarity scale, which fits a trial piece: only a handful would ever have left the mint, and most never left the building. That scarcity is the whole point, not a footnote. A collector chasing this is not chasing gold. They are chasing a specific, thinly-populated object from the design history of the German Empire's money.

We do not have a verified mintage figure or auction record to publish for this exact piece, so we will not invent one. Treat any specific number you see elsewhere as something to confirm against an inspected, catalogued example before you rely on it.