Newport Resolution Test Target Glass Chromium Negative USAF-1951 RES-1 Optical

RARE Tropel Model 350 Fabry-Perot Interferometer Optical Instrument w/ Wood Case

PYROMETER/Linear Expansion Demonstration Apparatus Used Vintage Test equipment

Vintage PYRO Pyrometer Instrument Co.

VINTAGE 1950s PYRO SURFACE PYROMETER WITH CASE! 0-300°F!

PYRO Micro-Optical Pyrometer with Carrying Case

^^ Photodyne Model 66XLA Optical Power/Energy Meter (DVB49)

VINTAGE 1950s PYRO SURFACE PYROMETER WITH CASE! 0-300°F! NEEDS REPAIR/NICE SHAPE