Auction 186-190

1917: Two pages from the Beni-Sab Post Office receipt book, the first with block of ten 1 pi. ultamarine tied by fifteen strikes of BENI-SAAB bilingual cds's (Coles & Walker fig. 49) in blue-black (Feb 22) and the second with vertical strip of ten 1 pi. ultramarine tied by six strikes of BENI-SAAB bilingual datestamps (Feb 25). The pages display well and this is one of the few ways one can find this cancellation utilised.