1. WOOS/20/3 Reference (shelfmark): WOOS/20/3 Title: Compilation traces, notes and additional compilation materials Scope & Content: Compilation traces with accompanying notes and source materials Collection Area: Map Collections Languages: English Date Range: 1912-1914 Extent: 22 maps sheets and 6 folios
2. WOOS/20/3/4 Reference (shelfmark): WOOS/20/3/4 Title: Compilation materials for Koster sheet South G-35 I-IV Scope & Content: Tracings, hectographs and lithographs Collection Area: Map Collections Languages: English Date Range: 1910 Extent: 12 map sheets