TY  - GEN
TI  - "Invisible joint" (trade mark) metal ceilings and side walls - Lock Joint-Colonial, Design No. 1955.
AU  - Milwaukee Corrugating Company. Art Metal Ceiling Department
DA  - 1920s
UR  - https://digital.lib.uh.edu/collection/aapamphlets/item/1877/show/1611
Y2  - March 4, 2021
ER  -