1. Photo 66/7(18) Reference (shelfmark): Photo 66/7(18) Title: Placing the 8 feet diameter high pressure valves, [Ul River hydro-electric project]. Photographer: Unknown Scope & Content: Genre: Historical Events Subjects = hydro-electric projects; public utilities; tunneling Location = Himachal Pradesh; India; Ul River Collection Area: Visual Arts Languages: Not applicable Date Range: 1925-1933 Extent: 1 item