File:Prograph operators and controls.PNG

Prograph operators and controls - courtesy MacTech.

Fair use rationale for Prograph
Though this image is subject to copyright, its use is covered by the U.S. fair use laws, and the stricter requirements of Wikipedia's non-free content policies, because:
 * The product no longer exists, so it cannot be self-documented
 * The screen shot in no way limits the non-existent company to gain remuneration