Subject

• Tracings. Drawings. 8
• Plans. Maps. 6
• Sketches. 6
• Copies. Derivative objects. 5
• Cross sections. 5
• Plans (drawings). 5
• Topographic surveys. 5
• Maps. Cartographic materials. 4
• Marine charts. 4
• Engravings. Prints. 3
• Longitudinal sections. 3
• Working drawings. 3
• Photographs. 2
• Surveys. Documents. 2
• Carbon copies. Reprographic copies. 1
• Design drawings. 1
• Holographs. Autographs. 1
• Lithographs. Planographic prints. 1
• Manuscript maps. Maps. 1
• Measurements. 1
• Perspective views. Images. 1
• Profiles. Orthographic projections. 1
• Reductions. Copies 1
• Reports. 1
• Sectional elevations. 1
• Stats. Copies. 1
• Topographical views. 1