Hallmark "PLATINOPRIBOR" - Moscow

Master's Mark of Grinshtein M. V. - Tbi…

Moscow Platinum Plant - initials "MOSTO…

Master's Mark of Folomin M. V. - Kiev -…

Master's Hallmark of Linden Nikolai Gus…

Master's Mark of Grigory Davidovich Sol…

Maker's Mark of Master Pavel Sazikov - …

Master's Mark of Lyubavin Alexander Ben…

Master's hallmark of Vasilyev Ivan - Mo…

Master's Mark of Zilberman M. - Kiev - …

Master's Mark of Serebrennikov - Pskov …