Subject

• Copies. Derivative objects. 1
• Cross sections. 1
• Drawings. Visual works. 1
• Elevations. Orthographic projections. 1
• Engravings. Prints. 1
• Lectures. 1
• Letters. Correspondence. 1
• Marine charts. 1
• Notes. 1
• Plans (drawings). 1
• Plans (orthographic projections). 1
• Plans. Maps. 1
• Printed materials. Object genre. 1
• Prints. Visual works. 1
• Reports. 1
• Sections. Orthographic projections. 1
• Sketches. 1
• Stats. Copies. 1
• Topographic surveys. 1
• Tracings. Drawings. 1
• Transcripts. 1
• Typescripts. 1
• Working drawings. 1