Antique Brass Field Microscope French? w/ Partial Box

Description

Here is an Antique Brass Field Microscope. I’m unsure of the exact date or maker. Many of these were French. It comes with a partial wood box. Some of the brass has worn. It measures approximately 6” tall.
Please let me know if you have any questions.
OFFERED HERE: A VINTAGE COLLECTIBLE SMITH CORONA MECHANICAL CALCULATOR LICENSED BY GUBELMANN PATENTS. UNKNOWN AGE. VERY NICE COSMETIC CONDITION. I DONT KNOW HOW TO USE IT SO I DONT KNOW IF IT WORKS WELL OR NOT  SOLD AS IS