Five photos of flexible disc grooves

Print, Photographic

Accession Number: 2006.2.4b-f

Description: Black-and-white glossy polaroids of magnified and projected images of flexible phonograph disc grooves. Images were first magnified using a Nikon Microsope and video camera attachment.

Medium: Photographic Paper

Print Size: 4.25" (h) x 5.75" (w)

Date: 1983

History/Provenance: Photos taken by APH staff. Kept with a company in-house report in the company's Machine Shop, which later became part of the Maintenance Department.

Credit Line: APH Archives, 2006.2

Subjects: Manufacturing processes Sound recording and reproducing Photographs