I don't know the working condition of this camera. It belonged to my father. Though kept put away, it is not clean. Here are all the details I can find about it by looking at the inscriptions on the hardware. The only physical damage I notice on the outside of the camera is that the rim of he lens housing has a dent in it. This can be seen in the images.
ItemBrandModelDescription
Camera - 35 mm rangefinderZeiss IkonContax IIIaWith lens Ziess-Opton Nr 1013121, Sonnar 1:1.5 f=50mm
Includes Instruction Book. Manufacturing began in 1936
Flash sync cableZeiss IkonContax 1366
Overall length is 10.5cm.  Includes box and receipt
Flash sync cableZeiss Ikon1361Overall length is 10.5cm
2 Lens FiltersZeiss Ikon3 5 4 S 40,5Yellow G 2x, / Orange 5x, 1954 Price list
Lens hoodZeiss Ikon1119 s 40.5Aluminum
Wide-angle finderZeiss IkonNo. 435, F=21mmIncludes box
Please see pictures for details and post any questions I might be able to answer. Keep in mind, I'm not a photographer so please dumb-down your question for me. If there are certain tests I might make, explain what to do and I'll check it out. There are some additional accessories included in this auction which are not listed here. See pictures for all included items.

On May-12-24 at 07:05:27 PDT, seller added the following information:

I erroneously included the Wide-Angle finder in this listing. As a potential bidder pointed out, it should have accompanied my listing for the associated wide angle lens which is posted at https://www.ebay.com/itm/145771031131. eBay does not allow me to remove the picture of the wide-angle finder from this listing nor its description, so it will remain part of this auction listing.