used 3a. black on bright red, imperforate horizontal pair, used with "MOMBASA/A/NO 23/93" squared circle cancellations. S.G. 8ab, £400. Photo

Details
used 3a. black on bright red, imperforate horizontal pair, used with "MOMBASA/A/NO 23/93" squared circle cancellations. S.G. 8ab, £400. Photo