Hachmeister-Lind
Hachmeister-Lind was a Pittsburgh-based chemical maker[1] and auto parts business, which applied mirror finishes to a portion of auto light bulbs. The treated light bulbs, called Perfect-o-Lite,[2] cut down the glare of the lights and directed the beam over a wider area of the road. The company operated during the Great Depression in the 1930s. It had a physical address at 211 Wood Street[3] and a mailing address at Dept. L-570, in Pittsburgh.[4]