A variant of the Olkusen trojak not described in Iger's catalog.
A variety with a large king's head, with the date in the third line on the reverse (NIAE.9Z), but with the notation RE (instead of REX, as in the three variants in Iger's catalog).
In addition, there is an interesting error on the reverse of the coin, where the ligature of the letters AE is scored in mirror image.
The king's crown without the cross.
Very nice state of preservation. Mint fresh trojak.