Layout of Electric Sub-Station in Laboratory Basement (64-M), ?/17/1920, revised 7/7/1921
Pencil-on-paper drawing, 27x38-1/4 inches
Drawer 13, Folder 8
Pencil-on-paper drawing, 27x38-1/4 inches
30-1/4x54 inches
(not numbered due to linen damage)
17x30-3/4 inches
(not numbered due to linen damage)