Vary rare gröschel from the Brieg mint from 1702, with letters MB on the side of globus cruciger.
Variety unlisted in Friedensburg-Seger catalogue.
In the specialist catalogue of Leopold I's gröschels from Silesian mints by D. Gołek, the coin is distinguished by the rarity grade R7, which corresponds to 5-10 specimens known to the author, however, this variety is not illustrated in the catalogue.