c. 1948 General Electric Type PR-1 Exposure Meter

The Piece

A vintage General Electric Type PR-1 photographic exposure meter, dating to approximately c. late 1940s–early 1950s, with a black case, silver calculator dial, red GE logo, and original-style neck strap.

The back plate is clearly marked:

General Electric Exposure Meter
Type PR-1
For Film or Plates
Use American Standard Exposure Index Numbers
Serial No. L20817
U.S. Pat. 2296670
N.P. 126766
Made in U.S.A.

This was a handheld analog light meter used by photographers to calculate exposure before built-in camera metering became standard. It allowed the user to measure available light and determine usable combinations of shutter speed, aperture, and film speed. Basically, it did the thinking your camera now does automatically, because apparently photographers once had to understand math and light like responsible adults.

Historical Context

The GE PR-1 exposure meter was part of the mid-century era of handheld photographic meters, when photographers relied on separate light-reading tools to properly expose film, sheet film, and photographic plates.

The wording “for film or plates” is especially interesting, as it connects the meter to a transitional photography period when roll film was common, but plate and sheet-based photographic methods were still relevant in certain applications. The dial includes f-stop markings, exposure index numbers, shutter speed references, high/low light settings, and frame rate indicators, making it a compact mechanical calculator for photographic exposure.

Its black case, silver dial, red GE emblem, and industrial faceplate give it strong visual appeal as both a photography collectible and a small piece of American technical design.

Product Details

Condition

This piece is in vintage condition with visible age-related wear. The black body presents well and retains its classic shape, while the silver dial shows surface scratches, patina, and areas of wear to the printed markings. The red GE logo remains intact and gives the piece excellent display presence.

The back plate is legible, with clear maker, model, patent, and serial information. The strap is present.

Functionality has not been tested for accuracy. Selenium-cell exposure meters can weaken over time, so this piece should be sold as a collectible and display object unless tested against a known working meter.

Why It Belongs In Your Home

This is a great small object for anyone who loves vintage photography, old cameras, industrial design, darkroom culture, or technical antiques. The GE logo, calculator dial, patent-marked back plate, and black case make it visually interesting from every angle.

Style it on a desk, bookshelf, studio shelf, darkroom display, or alongside vintage cameras, film canisters, photography books, and brass or black metal objects. It has that excellent mid-century utility aesthetic: compact, practical, graphic, and made before everything became a disposable rectangle.

It is the kind of object that looks good even if you never use it, which is more than can be said for most things currently charging by subscription.