Royal Gazette in Georgetown, 4c. lemon-yellow with thick frame and break over "G" and "U" of "GUIANA" (Townsend and Howe Type A) and apparently without postmaster or postal clerks initials, a cut-square example clearly cancelled with "DEMERARA/NO51" double-arc datestamp; lower left corner added, some thinning and other faults. A presentable and collectable example of this very rare and delicate stamp. Pemberton, Wilson & Co. handstamp on reverse. R.P.S. Certificate (2001). S.G. 3I, £34,000 (cut square)" /> used 1851 Type-set "Cottonreel" printed at the office of the <I>Royal Gazette</I> in Georgetown, 4c. lemon-yellow with thick frame and break over "G" and "U" of "GUIANA" (Townsend and Howe Type A) and apparently without postmaster or postal clerks initials, a cut-square example clearly cancelled with "DEMERARA/NO51" double-arc datestamp; lower left corner added, some thinning and other faults. A presentable and collectable example of this very rare and delicate stamp. Pemberton, Wilson & Co. handstamp on reverse. R.P.S. Certificate (2001). S.G. 3I, £34,000 (cut square) | Christie's