Optically Worked Double Convex Glass Lens, 75mm Diameter, 500mm Focal Length Microscopy_Microscopy Equipment &Supplies and follicular stages from primordial

and follicular stages from primordial through mature corpus luteum for reproductive anatomy and histology teaching

75-inch frame for bench storage between uses in teaching chemistry and biology labs

suited to bench-scale magnetism work where space is tight or where weaker field strength is required

CKP: inductive crankshaft position sensor

hand-painted detail for blood-flow teaching

Optically Worked Double Convex Glass Lens, 75mm Diameter, 500mm Focal Length Microscopy_Microscopy Equipment &Supplies and follicular stages from primordialLong focal double convex glass lens at 75mm diameter and 500mm focal length, the f 6. 7 geometry pushing the focal point downrange for projection style real image formation across long benches.