Perforation Variation - Birds of Prey RM1

A set of stamps on birds of prey was issued on May 18, 1996. Perforations 13.5 and 14.5 x 14 were recorded for all the four denominations (20 sen, 30 sen, 50 sen and RM1). Showing below are the two perforations for RM1 stamp. Perforation 13.5 is less common compared to perforation 14.5 x 14.

Perf. 13.5
Perf. 14.5 x 14