RUSSIA. Silver medal o. J. of V. Nikonov. Bonus of the school of girls for successful graduation, Vs.: Chest image of the tsaress Maria Feodorovna n. r., Rev.: Minerva stands with laurel wreath in the right and oil lamp in the raised left v. v., left and right at her feet attributes of sciences, Dm. 50.9 mm. 58.48 g. beautiful dark tint, scratches, almost vz. ex Coll. Dr. Victor Wishnevsky; acquired by Giessener Münzhandlung, Auction 91, 1998, Lot 3519