It is the work of a well-known medalist, Jan Buchheim, active in Silesia in the 17th century (1623-1683).
He lived permanently in Breslau and, as Adam Wiącek describes his work, was a free artist. He worked for the royal courts, the Silesian Piasts and the Wroclaw City Council. He made stamps of medals of Polish kings, including the one for the nuptials of Michal Korybut Wisniowiecki. In addition to works for heads of state, he also prepared commemorative medals for wealthy burghers - wedding medals, religious medals and awards. And one such work is the present baptismal medal.
Signed IB on both sides.
Silver, diameter 41 mm, weight 18.56 g.