Today we showcase a few Mead Paper advertisements from the early 1950s. These advertisements were originally featured in Better Impressions, the journal of the Mead Corporation, a paper company dating back to 1846.
Nowadays most recorded sound is stored on digital media, but initially sound was stored analogously on a great variety of materials, including foil, lacquer, metal, paper, plastic, shellac, and wax, and in photosensitive emulsion. Recording formats included a variety of undulating grooves, latent images, and polarizations. Also wide ranging are the forms of degradation and damage, including abrasion, breakage, chemical decomposition, delamination, dirt, fading, mold, overplaying, oxidation, peeling, and warping.
The preservation and restoration of sound recordings must deal with all the factors described above and, not surprisingly, presents unique challenges. Several of us at Lawrence Berkeley National Laboratory, working in close collaboration with the Library of Congress and others, have studied the problem and developed some solutions. The work described in this Quick Study has allowed researchers and the public to listen to a variety of “unplayable” key historical documents. Still, many media and modes exist that remain to be addressed, and our work is far from done.