Kellner microscope by Belthe and Raxroth no.320
Kellner microscope by Belthe and Raxroth no.320, with one eyepiece, two o.gs. (not in cases), no.1 o.g in case (104)
Kellner microscope by Belthe and Raxroth no.320, with one eyepiece, two o.gs. (not in cases), no.1 o.g in case (104)