1. IOR/X/14076/18 Reference (shelfmark): IOR/X/14076/18 Title: Sheet 18 Ping Chau GSGS 3868 Third Edition 1949. Grid and graticule change only. Printed UK 6/49. Previous editions 1931, minor corrections 1939, 1945 (Grid change only). Collection Area: Map Collections Languages: English Date Range: 1949 Extent: 1 item