"Fujinon-Xerox 1:4.5 f=24cm" lens in cell for sale. I'm pretty sure that this is a copy lens -- anyway I made a copyscope out of it and it delivered very good views at 24x (with a 10mm eyepiece) and decent views at 48x. Excellent for use as a moon scope or finder as well. Cell is heavy duty; there are 3 elements inside and the lenses are coated. There are a couple of small scratches on the front lens and one on the back, but these don't affect image performance (not at 24 and 48 power, anyway). Cell is heavy, but mounts easily in PVC (add some friction tape bushing around the middle to keep it snug).
Asking $20, with $6 shipping via UPS within the continental US (shipping will be extra elsewhere).