Weight 5.18 g Diameter 24.3 mm Silver 868.
Weight: 10 grams. Diameter: 27 mm. 900 silver.
Copper "1 kopeck in silver" coin. 1840. On the obverse: 1 kopeck in silver 1840. On the reverse: monogram H-I.
Weight: 8.56 gr.
Examination of art and antiques from professional participants of the Antiqon PRO project. Confirmation of authorship, the authenticity of works of applied and fine art of the XVI - XX centuries.
Embrace the advantage of the professional services of experts in the field of restoration of art and antiquities, provided by Antiqon Pro project thru independent parties.