Award Medal for Achievements in Art and Industry (1829). Bronze. 35 mm. By G. Mainert. Diakov 481.1 (R3), H Cz 3811 (R2). Bare bust of Nicholas I right, signed MAINERT on truncation / SOLERTI within wreath. Diagonal tiebreak from edge above P of IMP. through L of POLONIAE. Very rare. Minor contact marks. Silvery undertone with iridescent hues. Uncirculated. Estimated Value $1,000