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Vilnius Assay Master's Mark - Karl Protorius - initials "K-P" - 1821-1830

Hallmarks-Assay Masters


Vilnius Assay Master's Mark - Karl Protorius - initials "K-P" - 1821-1830
  • Letter: K-P 1830
  • Year: 1821-1830
  • Shape: Square
  • Description: Assay master's mark of Karl Protorius, featuring the initials "K" and "P" with a dot between them, a horizontal line through the center, and the year "1830" below. (1821-1830) Shape: Square

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