TEC APO 140 f/7 Fluorite Apochromat - English。Carl Zeiss Jena Flektogon 50mm f/4 Zebra Pentacon Six P6 Lens DDR。Explore Scientific 127 mm Air-Spaced Triplet Telescope。ExploreOne CF600 50mm f/12 Carbon Fiber AZ Refractor 88-10050-CF。All are dried specimens collected in the field for academic research.Data is included with each specimen.Rubbing