Variety with ending of obverse legend PRVS M, type III of 1/4 thaler from 1622 distinguished by Shatalin, very similar to the Shatalin B22-III-5 type, but with a different ornament on the coat of arms on the reverse..
Unlisted variant in the Shatalin catalogue, with a type 1 of obverse and unlisted type of reverse, with a type 3 crown, but with other ornaments at the coat of arms.