Subject

• Topographic surveys. 5
• Tracings. Drawings. 5
• Elevations. Orthographic projections. 4
• Plans (drawings). 4
• Plans. Maps. 4
• Sketches. 4
• Copies. Derivative objects. 3
• Cross sections. 3
• Engravings. Prints. 3
• Longitudinal sections. 2
• Manuscript maps. Maps. 2
• Maps. Cartographic materials. 2
• Photographs. 2
• Working drawings. 2
• Carbon copies. Reprographic copies. 1
• Holographs. Autographs. 1
• Lithographs. Planographic prints. 1
• Manuscripts. 1
• Profiles. Orthographic projections. 1
• Reductions. Copies 1
• Reports. 1
• Stats. Copies. 1
• Surveys. Documents. 1