Anzelmas, nice find! Standard practice is to take a picture of your coin in front of a mirror to demonstrate the die rotation. It's frustrating but necessary (see below).
My only familiarity with this is from finding a France 10 Francs with 90°. rotation. The only valuation I could find was one for sale @ $40 and one that sold for $40. I imagine that your coin is valued about the same, but who knows!
France 10 Francs 1951


My only familiarity with this is from finding a France 10 Francs with 90°. rotation. The only valuation I could find was one for sale @ $40 and one that sold for $40. I imagine that your coin is valued about the same, but who knows!
France 10 Francs 1951


Inordinately fascinated by bits of metal with strange markings and figures