Turkmenistan 1998 World Records (120m LNER Mallard - fastest steam loco) set of 5 imperf progressive colour proofs comprising the 4 individual colours plus all 4-colour composite
Turkmenistan 1998 World Records (120m LNER Mallard - fastest steam loco) set of 5 imperf progressive colour proofs comprising the 4 individual colours plus all 4-colour composite