6 Stuivers `Scheepjesschelling` Brockage error

A brockage occurs when a freshly struck coin sticks to the die and becomes an unintended punch for the next blank fed into the press — producing a mirror-image incuse impression of the obverse on what should be the reverse. For a provincial mint operating under the decentralized and chronically under-supervised structure of the Dutch Republic, such errors were neither systematically caught nor destroyed with any consistency, which is why Zeeland brockages occasionally surface in collections today.

Zeeland's mint at Middelburg ran intermittently across the full two-century span of this type, with output quality varying sharply depending on the decade and the competence of the incumbent mintmaster.