This is a actual scientific instrument. Its frame is made by metal and optical parts are made by real optical glass lenses. This perfect microscope is an ideal use for students from elementary to high school or homeschool at affordable price.
Andersen Instruments RAAS2.5-300 Sequential Ambient Air Sampler RUPPRECHT I obtained this item at a local auction of UNLV surplus items. Someone on EBAY is selling this item for $189! so it must be a valuable item!
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