1. IOR/X/14557/46O Reference (shelfmark): IOR/X/14557/46O Title: Sheet 46-O Marsa Gulbub Sudan Edition 1940. Eritrea. Enlarged directly from IGM 1:400,000 maps of Nacfa and Isole Farisan 1934. Compiled & zincographed SOK Sept 1940. Printed black only. [39°E–40°30'E, 16°N–17°N; adjoining sheets 46-J, N, 56-B, C.] Collection Area: Map Collections Languages: English Date Range: Unspecified Extent: Two copies.