BOIC ERITREA SG ED5 1s on 1s deep blue CDS Used Block BPA Cert

Postage Due. 1948 B.M.A. ERITREA 1s on 1s deep blue upper left corner block of 4 fine used with central ASMARA-CENTRO/TASSATE cds dated -9.5.49 . A scarce positional multiple with total sales of this value equivalent to less than 93 sheets. BPA cert (1982).. Purchased from Stanley Gibbons (still on their card)