Nice piece, slightly deficient.
Rare in the trade variety with punctuation marks in the form of labrys.
Obverse: in the pearl rim the Grand Master's shield, in the outer rim the legend:
*MAGST MICHAEL PRI;
Reverse: in the pearl rim the monastic shield, in the outer rim the legend:
COIN DNORVM PRV;
Silver, diameter 21 mm, weight 1.67 g.