With a round base having all brass parts with 10x and 20x eyepieces ...
With round base has all Bakelite parts with 10x and 20x eyepieces ...
Dissecting Microscope
Single Nose Microscope (BM – 1)
Junior Student Microscope (BM-2)
Compound Student Microscope (BM-3)
Compound Student Microscope
Junior Medical Microscope