Can all G.B. stamps be found perforated ?
Almost all stamps in use between 1868 and the late 1950’s can be found with perfin. However, from 1960, with the Post Office regularly producing commemorative issues, combined with the decline in perfin use in later years, it should come as no suprise that many of the later issues are not recorded perfinned. Link to list of pre-1961 issues not known perfinned.
