TONGA 1974 (MNH) 50S PARROT COIL DEFINITIVE WITH SPECIMEN PERFIN
50s Parrot self-adhesive coil definitive pin-perforated WSP SPECIMEN in a triangle (sideways). Scarce. Fresh and fine. Mint never hinged. SG486var; SCC152var
Note: only the 29s, 38s, 50s and 75s values exist with the individually-applied WSP SPECIMEN perfin and are known upright or sideways (facing either direction). WSP is an acronym for Walsall Security Printers