Serial number on box is 58589, no serial number on barrel. _gsrx_vers_631 GS 6.9.8b6 (631). The item "ANTIQUE / EARLY 1900s LEITZ WETZLAR MICROSCOPE IN ORIGINAL BOX" is in sale since Friday, May 20, 2016.This item is in the category "Collectables\Science, Medical\Science". The seller is "hnco" and is located in Woolloongabba, Brisbane. This item can be shipped worldwide.