Difference between revisions of "Navy sound powered phones"
Jump to navigation
Jump to search
| Line 3: | Line 3: | ||
==References== | ==References== | ||
* early edition of [[File:Telephone Talkers Manual.pdf]] | * early edition of [[File:Telephone Talkers Manual.pdf]] | ||
| + | |||
| + | [[Category:Military/Intercoms]] | ||