on piece 3a. black on bright red and 2½a. black on bright yellow, imperforate horizontal pairs tied by "MOMBASA/A/NO 23/93" square circle cancellations to small portion of registered envelope; fine. S.G. 8ab, 7bb, £800. Photo

Details
on piece 3a. black on bright red and 2½a. black on bright yellow, imperforate horizontal pairs tied by "MOMBASA/A/NO 23/93" square circle cancellations to small portion of registered envelope; fine. S.G. 8ab, 7bb, £800. Photo