This is a professional instrument removed from a prober in my lab. It looks like the Olympus heads that we have elsewhere but isnt branded. Zoom level is 0.9 to 4 and it is fitted with two WF20X/12 eyepieces. Evidently it's one of these..
A Chinese copy of the Olympus. The item "Widefield Stereo Binocular Microscope Head" is in sale since Tuesday, March 9, 2021. This item is in the category "Business, Office & Industrial\Healthcare, Lab & Dental\Medical & Lab Equipment, Devices\Microscopes". The seller is "time_keeper_uk" and is located in Wiltshire.This item can be shipped to United Kingdom.