50 caliber soldering iron

[PRR]

From a wartime issue of RADIO NEWS, report from the field.

Second note: "kleins" should be capitalized, proper name, company, trademark. Interestingly Klein is still around, dominating its field, and most of the top management are named "Klein". https://www.kleintools.com/history

 

[prairieboy]

Eons ago when I worked for the phone company all side cutters and needle nose pliers were Klein's. We were never issued wire strippers, it was 'use your Kleins'.

 

[dangus]

Where did the carbon rods come from? Maybe they were used for carbon arc searchlights. I don't think the diameter matches any common dry cells.