Description
GB 1971 Machin 6½p CB unmounted mint cyl 4 dot & 11 no dot blocks of 50 showing the clearly larger heads of cyl 11, includes r20/3, r13/5 SG-listed varieties [ref 293-606/l/ak0283]
Machin 6½p CB um cyl 4 dot & 11 no dot blocks of 50 showing the clearly larger heads of cyl 11, includes r20/3, r13/5 SG-listed varieties
GB 1971 Machin 6½p CB unmounted mint cyl 4 dot & 11 no dot blocks of 50 showing the clearly larger heads of cyl 11, includes r20/3, r13/5 SG-listed varieties [ref 293-606/l/ak0283]