BLUE MALTESE CROSS OF PRESTON ON COVER (SPEC B1sc CAT. £1700). 1842 letter Preston to Manchester with fine four margined 1d pl.16 (SG8) lettered GE tied several strikes of a DARK BLUE MALTESE CROSS, back stamped PRESTON in same shade MR 6 1842. Stamp shows BASAL SHIFT (Spec BS5c). (Ref 103886).