planimeter - See the description. - 1850-1900 - "INGUT" IMPORT Planimeter

This object is a planimeter, an instrument used for measuring areas on maps and drawings. It is often stored in a protective case with a lining of red velvet or fabric.
Function: Determining the area of an area by tracing the outline.
Parts: Often consists of a measuring wheel, a tracer arm, and a polar arm.

The gold-colored logo in the middle is from In-GUT, an importer or distributor of technical measuring instruments.
The code 9580-00 at the top right is probably a specific model or serial number from the manufacturer (such as Ott or Coradi), who often sold such instruments through importers like In-GUT.

Instrument: The planimeter itself is mainly made of metal, likely an alloy such as silver, stainless steel, or another metal. The large wheels on the sides have a serrated surface (serration) for grip.
Case: The case is likely made of wood, covered with black leather or imitation leather.
Lining: The inside of the case is lined with red velvet or a similar fabric.

What you see in the photos is what you get
Good luck with your bidding!!