Master's hallmark of Zimin Alexander Mikhailov - Yaroslavl - initials "AZ" - 1857-1877

Master's Mark of Blasball John - Lening…

Moscow Assay Master's Mark - Grigoryev …

Maker's Mark of Master Falk Abram Mordu…

Twenty-Third Moscow Artel - initials "2…

Mark of an Unknown Tbilisi Master

Master's Mark of Shalamov Artin - Tbili…

Master's Mark of Lazar Vekilov - Tbilis…

Mark of an Unknown Tbilisi Master - Mid…

Mark of an Unknown Tbilisi Master - 1838

Mark of an Unknown Tbilisi Master - 184…