NIGER COAST 1894 '½' on left half of 1d pale blue, SG58dNiger Coast 1894 (June) '' on left half of 1d pale blue, type 15 surcharge in red, Opobo bisect provisional, lower marginal, perforations compound 13 14x12 13, tied to piece by OPOBO RIVER circular date stamp, dated 'SP 19 94', SG58d. A fine used example despite some minor marks at foot. An attractive and unusual piece of early Nigerian postal history. There are no examples of these bisect stamps known in mint condition. A very rare stamp as only 120