Nikon Microscope Focusing Eyepiece Pair CFWN 10x/20 Eyepieces Labophot Optiphot Diaphot

Eyepieces are used, in good condition, have been tested and produce a good image.
Focus adjusts properly.
23mm tube diameter, for heads used with Labophot, Labophot 2, Optiphot, Optiphot 2, Epiphot, Diaphot.