Issued at Old Calabar 1893 (Dec.): 'HALF / PENNY' in green on Great Britain 2½ d. purple on blue, used horizontal pair, marginal from bottom of sheet with Gibbons Type 9 handstamped surcharge, neatly cancelled by "Old Calabar River" circular datestamp (May 25, 1894) in black with Cert. Brandon (2012) together with another used example of 'HALF / PENNY' in vermilion on Great Britain 2½ d. purple on blue with Gibbons Type 4 handstamped surcharge in vermilion Gi. = £ 1'325. (Image 1) (Image 2) (Image)