No. 1639. Parabolic Reflectors, used to collect sound, light or radio waves.
No. 1641. Melloni's Apparatus, for demonstrating the phenomena of absorption, polarization, reflection and refraction of radiant heat.
Central Scientific Company. “Various Laboratory Apparatuses.” Catalog K: Physical Apparatus for Universities and Colleges. Chicago, Illinois, May 1912. https://digital.sciencehistory.org/works/qn59q402s.