Nice relief, but medal with a scratch in front of the portrait, a crack in the disc and filing / partial gouging of the rim, presumably to prepare for binding, but no signs of binding, mounting.
Very rare silver medal commemorating the founding of the Warsaw Royal Society of Friends of Science in 1808. This was done by decree of Frederick August, Prince of Warsaw.
Signed J.L. (Jan Ligber).
First time in our offer.
Silver, diameter 53 mm, weight 40.2 g.