Original 1943 electrical trade vintage ad for J-B-T INSTRUMENTS, INC.  Main office and plant was located at 441-G Chapel Street, New Haven, CT.

Announcing a New Line - Vibrating Reed Frequency Meters. Sturdy and Simple in Design, Permanently Accurate.

Important new features of this line are - simplified construction, with fewer parts - individual reed activation so that the whole bank does not vibrate - great variety of cases and sizes.

Unbound from a 1943 electrical engineering magazine, this unique old one-page advertisement would display beautifully matted and framed. Nice graphics. World War 2 era. A fabulous addition to your retro electrical library.