Perspective Drawing by David W. Osler, undated
1 drawings (pencil-on-vellum original)
Drawer 6, Map-case 1
1 drawings (pencil-on-vellum original)
1 drawings (perspective), 22 drawings (surveys and architectural drawings) — pencil-on-vellum originals and blue-line prints
1 drawings (pencil-on-vellum original)
24 drawings (architectural, structural and mechanical, electrical;plumbing drawings; pencil-on-vellum originals)
1 drawings (pencil-on-vellum original)