Schwarzburg-Rudolstadt. Gunther Victor gilt Uniface Proof Pattern 10 Mark ND (1898)-A AU (cleaned), Berlin mint, cf. KM187 (gold), cf. Schaaf-286 (there, in copper). 19.5mm. 3.85gm. Accompanied by collector envelope. HID09801242017 © 2023 Heritage Auctions | All Rights Reserved

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