http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/ab7f58f20e39c45575809ba25e5e0ca5.tif · Grinnell College Physics Museum · Grinnell College Libraries

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http://omekax.grinnell.edu/PhysicsInstrumentMuseum/files/original/ab7f58f20e39c45575809ba25e5e0ca5.tif

Media

Part of Spencer Microscope No. 6872 with 2 objectives