1. WOMAT/RAS/CHI/307/1 Reference (shelfmark): WOMAT/RAS/CHI/307/1 Title: Tracing. Collection Area: Map Collections Languages: English Date Range: 1907-1908 Extent: 1 map sheet.
2. WOMAT/RAS/CHI/307/2 Reference (shelfmark): WOMAT/RAS/CHI/307/2 Title: Blue-print. Collection Area: Map Collections Languages: English Date Range: 1907-1908 Extent: 1 map sheet.