Zeiss Achromatic aplanatically corrected condenser 1.4 - very RARE - 46 52 57

This is a Zeiss aplanatic 1.4 condenser. N.A. 1.4(with top part); N.A. 0.32 without top. I did not attempt to remove the top part as it appears quite stiff. The diaphragm is adjustable. This is part of my own collection and is rare!

eBay