Leitz LWD EF 32X Phaco-1 Phase contrast microscope objective. This lens is intended to be used on the Leitz Diavert inverted microscope and carries a product number of 519-437 with a last list price of $1,151.00. It is a 160 mm TL- DIN objective and does not require a cover slip. It is in near mint condition with all glass being free from fungus, dust, element separation and liquid incursion into interior elements. This objective is a rare find in this condition. Thanks for looking!