Ruhstrat coffee roaster discovered in Colombia

ca. 1949

That Ruhstrat did not only build ovens in XXL at that time shows us the example of a coffee roaster. 
Recently, we received an inquiry from a private person who bought the device used in Colombia. The roaster was only cleaned and works perfectly. 

The customer wanted to know the year of manufacture, which we unfortunately could not find out. The only certainty is that the device is from the 50s.
If you have older depictions (drawings, photographs, illustrations, etc.) or additional information that you can provide, we would appreciate your contacting us.

Drawing of the coffee roaster protected by utility model ^[1]

We wish him a long and happy life with the machine. Perhaps he will send us a very exclusive "Ruhstrat roast" one day. ;-)