Lituanistica, Russia. Medal 1828 Vilnius University 250 years. St. Petersburg mint, engraver F. Tolstoy (signed on both obverse and reverse Г. ΘEOДОР. ТОЛСТОЙ). Mintage: 15 - gold, 100 - silver, 400 - copper medals. Silver 67 mm, 188.9 g. H-Cz. 3620 (R3); CRM 355; Smirnov 449; Diakov 469.1 (R3 for silver). Very rare in silver.