Public domain
Custodian of Patents. Washington, D.C., Feb. 29. An informal picture of John I. Cusick, who is in charge of models in the United States Patent Office, 2-29-40
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineCustodian of Patents. Washington, D.C., Feb. 29. An informal picture of John I. Cusick, who is in charge of models in the United States Patent Office, 2-29-40. 1940-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.