Original 1952 electrical trade vintage ad for GENERAL RADIO COMPANY.  Main office and plant was located in Cambridge, MA.

Manufacturers of Textile Machinery.

Products include an Extra-High-Intensity Stroboscope for S-L-O-W Motion Textile Machinery.

The Type 631-BL Strobotac is a special model has an extra low speed range of 60 to 1,440 RPM selected by a switch.

The Type 1532-A Strobolume furnishes just the right light intensity and slow flashing rate for either observing or photographing loom shuttle operation, warp knitters and the many other s-l-o-w speed textile machines.

Unbound from a 1952 synthetic textile industry handbook, this unique old one-page advertisement would display beautifully matted and framed. Nice graphics. A fabulous addition to your retro electrical library.