1. IOR/W/L/PS/21/N4/31B Reference (shelfmark): IOR/W/L/PS/21/N4/31B Title: Sheet 31B [GEH Preliminary Edition] 1911. Scope & Content: Reg.No.3621. D 11 (N.C.) 500. Collection Area: Map Collections Languages: English Date Range: 1911 Extent: 1 sheet