A rare variety, clearly rarer than the degree of rarity given by Iger would indicate.
A variant with a new type of bust (with a bow), and the letter L (mint designation) and the date placed under the initials of the Crown Treasurer - Jan Firlej.
Variant with an orifice dividing the titulature after SIG III.
Additionally, an error R-E.X.
An almost uncirculated piece with a nice natural mint surface, only faintly stamped.