3 Free Artworks of Manual Telephone Exchanges

1918posters of the united statesunited war work campaignsignal corps female telephone operators unitworld war i posters in the library of congresslibrary of congress artist posters collection
Manual telephone exchange board, Frontispiece (Rankin Kennedy, Electrical Installations, Vol V, 1903)
electrical installation1903
Back our girls over there United War Work Campaign - - Clarence F. Underwood. LCCN93510431
manual telephone exchanges1918
Back our girls over there United War Work Campaign - - Clarence F. Underwood. LCCN93510431
manual telephone exchanges1918
1 - 3 of 3
/ 1