used  1851 Type-set "Cottonreel" printed at the office of the 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)
No VAT will be charged on the hammer price, but VA… Read more British Guiana
used 1851 Type-set "Cottonreel" printed at the office of the 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)

Details
used 1851 Type-set "Cottonreel" printed at the office of the 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)
Special notice
No VAT will be charged on the hammer price, but VAT at 17.5% will be added to the buyer's premium which is invoiced on a VAT inclusive basis.
Further details
Note: Townsend and Howe note that of the eighteen examples of this stamp recorded by H.R. Holmes, only two examples are cut square, all the others being cut round. Holmes records dates of use for this stamp as between September and December 1851