The item on offer is a Spencer monocular microscope, serial number 139135, which dates the instrument to 1937. By comparison with a photograph in the Spencer catalog I believe this instrument is the research microscope No. 7 with Model N inclined monocular tube.
Complete Home School, High School Biology Lab Kit (A $300.00 VALUE) Set is pre-owned, but hardly used. Only a few chemicals have been used and there is plenty left to complete several more lessons. Most other supplies are still new and in original packages.
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