GraLab Model 300, 60 Minute Photography and Darkroom Timer, 7-1/2" Length x 7-1/2" Width x 2-1/2" Height: Wall Timer Switches: Amazon.com: Tools & Home Improvement
Gralab 451R Darkroom Timer
Does anybody know if these old darkroom timers were radioactive? : r/ Darkroom
Gralab 451R Darkroom Timer | Film & Supplies | Gralab at Unique Photo