Swift Optical SW350B 40X-2500X Magnification, Siedentopf Binocular Head, Research-Grade Compound Lab Microscope with Wide-field 10X and 25X Eyepieces, Mechanical Stage, Abbe Condenser, with Smartphone Camera Adapter Mount,Fits 28mm Eyepieces Only.
This is a companion discussion topic for the original entry at https://www.ebay.com/itm/SWIFT-Lab-Science-Binocular-Compound-Microscope-40X-2500X-Phone-Adapter-Holder-/274507469154