Optically Worked Double Convex Glass Lens, 75mm Diameter, 500mm Focal Length Microscopy_Microscopy Equipment &Supplies and edge-polished

and edge-polished

Six-part life-size chicken anatomy model designed by veterinary professionals reveals avian internal structure and poultry biology for agricultural teaching

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

Life-size stomach model opens to reveal mucosal folds

Optically Worked Double Convex Glass Lens, 75mm Diameter, 500mm Focal Length Microscopy_Microscopy Equipment &Supplies and edge-polishedLong 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.