1 Krone 'Kaffeposer' Skillemønt type I, Crowned Stockfish

The "Kaffeposer" nickname — meaning coffee bags — came from the public almost immediately, a reference to the coarse, brownish paper used after the outbreak of the First World War made quality stock unavailable. It stuck. Denmark's Nationalbank had not issued small-denomination paper notes before this series; the war-driven disappearance of silver coinage from circulation forced the experiment. These were emergency substitutes for coin, not bank money in any traditional sense.

Heilmann was primarily a natural scientist and artist, an odd choice for a currency commission. The Type I printing shows noticeably inconsistent ink saturation across surviving examples — a known characteristic, not a condition flaw.