Browse Listings in Machin Selected Items. (see also MachinStamps.co.uk) > Decimal Machin (pre elliptical)
17p Slate blue (bright shade) ACP/PVAD Cyl. 10. 17 Pin Perf Error Row 19.
A fine unmounted mint cylinder block with 17 Pin Perf Error row 19.
£90.00
IanLasoksmith
20½p ultramarine PCP1/PVAD. 17 pin perforation error
Fine pristine unmounted mint marginal block of six with 17 pin perforation error on middle pair. Scarce circa 15 known.
£325.00
IanLasoksmith