Evening Republican, Volume 20, Number 300, Rensselaer, Jasper County, 18 December 1916 — Phones in Their Helmets. [ARTICLE]
Phones in Their Helmets.
Helmets for aviators have been Invented with wireless receiving t*l*phones built Into the ear flaps.
Phones in Their Helmets.
Helmets for aviators have been Invented with wireless receiving t*l*phones built Into the ear flaps.