Subject

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