Indeed, PP2 is the reference for this particular style of Perthshire weight and it is an unlimited edition. It is possible to divide Perthshire production roughly into two categories: the annual limited editions and the PP editions which may be limited or unlimited. PP1 and PP2 are the most common unlimited editions;they have both similar spoke designs but different sizes (PP1-3 inch / PP2-2 1/2 inch). Both types were produced throughout the life of the factory. As unlimited editions were not signed with a P until 1978.
There should be not any seconds for Perthshire as the factory destroyed systematically all seconds every week.