Frigidaire Vintage Temperature Tester Refrigerator With retailer Manual - Classic Tool

Product Name: Frigidaire Vintage Temperature Tester Refrigerator With retailer Manual - Classic Tool
Frigidaire Vintage Temperature Tester Refrigerator With Manual Classic Tool Vintage Frigidaire Temperature Tester It seems to be 50-70 years old. Part No. 5419999 or 5877300 It comes in a very thick leather case with retailer Frigidaire embossed on the top cover and there are three temperature probes included.  Nice piece of Frigidaire history. Please see pictures for item condition. This would be a great piece to display at home, in the garage, a museum, or gift to a friend that likes tools and collecting. It came from a electrician shop that had been in business for years and closed down. 8-20-1966 date on the ISI sticker - seems to be about 56 years old.