Austria
Republic Proof 25 Schilling 1958 PR67 Cameo PCGS, KM2884. A lovely Proof struck to commemorate the 100th anniversary of the birth of chemist Auer von Welsbach. A most elusive issue in proof, this selection has a mintage of just 1,000 pieces and presents lightly dappled surfaces in russet and blue tones. Visually appealing as such.
Estimate: 400-600 USD