1850-1854 1D ARCHER EXPERIMENTAL PERFORATION Pl.100 (RI)(SG16b) USED FROM DEVON. 1851 envelope Plymouth to Launceston with good Archer pl.100 lettered RI (several shorter perforations) tied clear "620" numeral of Plymouth and backstamped PLYMOUTH JA.19. 1851 and LAUNCESTON JA.20.1851. Stamps shows "I TILTS WEST". A RARE EARLY PROVINCIAL USAGE. 104 Archers on cover are recorded form Devon - this is one of 8 ex Plymouth. (Ref 71126).