1. Photo 384(56) Reference (shelfmark): Photo 384(56) Title: Madras Port Trust Harbour Extension Works: Interior of south skewback caisson showing ferro-concrete struts. Photographer: Unknown Scope & Content: With workers posed inside the caisson. Slightly unsharp. Subjects = civil engineering; harbour works; ports Collection Area: Visual Arts Languages: Not applicable Date Range: 23 Feb 1910 Extent: 1 item