German Porcelain/Trauenstein (1983) Coin, S-unlisted, White, 50 mm, R-?, Choice About Uncirculated. Rev: Birthhouse of Gottfried Silvermann.
Per Wikipedia: “Gottfried Silbermann (January 14, 1683 – August 4, 1753) was a German builder of keyboard instruments. He built harpsichords, clavichords, organs, and fortepianos; his modern reputation rests mainly on the latter two.”