Gambia 1987 Musical Instruments 1d (Balaphong & Fiddle) set of 5 imperf progressive colour proofs comprising blue & magenta individual colours, two 2-colour composites (blue & magenta and black & yellow) plus all 4 colours (ex one……Details Below

Gambia 1987 Musical Instruments 1d (Balaphong & Fiddle) set of 5 imperf progressive colour proofs comprising blue & magenta individual colours, two 2-colour composites (blue & magenta and black & yellow) plus all 4 colours (ex one of the two Format archive sheets) as SG 687 unmounted mint*