An exquisite, specimen Prussian orth.
The coin is the only one recognized with the highest NGC grading among those awarded so far.
Obverse: bust of the ruler in armor, girded by a sash with an order cross, in the sleeve initials of St Johann Julius Steibrück - the mincmaster of Königsberg, in the rim the legend:
FRIDERICVS BORVSSORVM REX;
Reverse: a Prussian eagle in talons holding a scepter and an apple, on either side of the tail the numerals 1 and 8, below the tail the letter E denoting the mint in Königsberg, in the rim the legend:
COIN-ARGENT-REG:PRUSS:1753
Coin very rare in this state of preservation.