Heath, Janet Critcher, Charlotte Inverted ICF Metallurgical Microscope Early metallurgical microscopes were inconvenient to use for many engineering applications. Bausch and Lomb designed this inverted instrument specifically for use in metallurgy with a large view camera. The objectives use a clip changer. Two types of light sources were available: the 100-watt low voltage ribbon filament (as in this example) and a carbon arc lamp (similar to A24). Inverted metallurgical microscopes are still being manufactured. This microscope was manufactured in the 1920's. LL02.48.01.21 22051 990 1920 1929 1920-1929 eng three dimensional object microscopes Microscopes Medical instruments and apparatus Medical microscopy United States New York (State) Rochester (N.Y.) Microscopy Bausch & Lomb Optical Company creator Gift of Donald R. Hoffman This item has been made available for use in research, teaching, and private study. Researchers are responsible for using these materials in accordance with Title 17 of the United States Code and any other applicable statutes. If you are the creator or copyright holder of this item and would like it removed, please contact us at als_digitalcollections@ecu.edu. http://rightsstatements.org/vocab/InC-EDU/1.0/ Laupus Health Sciences History Collections hom Historic Microscope Collection micro Health and Medicine ham Manufacturing and Business mab LL02-48 Laupus History Collection Inverted ICF Metallurgical Microscope Early metallurgical microscopes were inconvenient to use for many engineering applications. Bausch and Lomb designed this inverted instrument specifically for use in metallurgy with a large view camera. The objectives use a clip changer. Two types of light sources were available: the 100-watt low voltage ribbon filament (as in this example) and a carbon arc lamp (similar to A24). Inverted metallurgical microscopes are still being manufactured. This microscope was manufactured in the 1920's. Bausch & Lomb Optical Company Microscopes 1920-1929 PhysicalObject microscopes J. Y. Joyner Library, East Carolina University eng 22051 http://rightsstatements.org/vocab/InC-EDU/1.0/ Medical instruments and apparatus Medical microscopy United States--New York (State)--Rochester (N.Y.) Microscopy local, filename 22051.0001 1118785 image/jpeg 6.0 PRONOM PUID: fmt/10 big endian uncompressed MD5 8486fd2e28f19d3ec690ab1c9d974811 ecu:digital_collections 2172 2052 YCbCr mm mm 20110425 object plane in. 72 1 72 1 8 8 8 integer 3 internal