Universal 5mm Velocity

See a Universal Microphone catalogue from 1933 at World Radio History

By 1950 this model (or a similar one) was known as model 808.

From a contemporary advertisement.

"5mm" SERIES Velocity Type

Sensitive 5 mm ribbon element.

Frequency response; 40-10,000 CPS.

Output level; 58 db. below one volt per bar. 

5/8 inch-27 tpi. thread stand coupling.

Microphone size; 1.25 inches square. Weight 16 oz., packed

Impedances available: High, 500 ohms, 200 ohms or 33 ohms

Price $24.50

Outstanding for all around use; PA systems, orchestras, stage and drama pick up. So small and compact it does not hide face of performer. Will greatly reduce feedback in any installation. Highly polished chrome finish. De Luxe equipment included in handsome package; 25 ft. rubber covered cable, with lock ring connector at housing; suspension loop; Duvello cover and goose-neck (allows tilting of microphone).

A Universal 5mm Velocity microphone at Cole Picks Vintage