"BRUPPACHER, JOHANN CASPAR (Swiss). Medallist, born at Wadenswil; Mint-master at Lucerne, 1794. His initials C.B. or J. C. B. appear on his coins. A number of medals bear the same artist’s signature, generally in full : Military Medal of canton Unterwald, 1786; — School-prize Thaler for Obwald, 1786 ; — Prize medals (sev. var.) for Nidwald ; — Zoug Shooting Thaler,
1827 (2 var.’) ; — Zoug School-prize medals (sev. var. and sizes) ; — Prize medal of the S’ Urbanus School, 1782, &c. This Engraver’s initials appear further on Beromiinster Michaelsgulden of various types ; and also those of CASPAR BRDPPACHER." - Forrer, L. "Biographical Dictionary of Medallists", Bd. 1 (London 1904), S. 303
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