Russia, Imperial. A Badge Backplate, by Kortman

Constructed of silver, consisting of a gently convexed oval disc perforated with a central hole for the insertion of a lug, maker marked “З. КОРТМАН” for the firm of Kortman, measuring 35 mm (w) x 46 mm (h), weighing 9.3 grams, with an age-appropriate patina visible throughout, in near extremely fine condition.