DC Matt, thanks. Interesting possibilities. Plug N Play, thanks also for the input. I saw many of the same pictures that you did, and the translation is.
Hello. This is a US TRI-SURE cap of the following designations:
"Use Monkey Wrench
Tri-Sure
Chicago - New York
US Patents
1901196
1982144 1982145
Foreign tatc. Issued & Pend."
Dimensions:
thread diameter of 58mm,
top diameter of about 60mm,
height of about 15mm
Year of patent and other information about the patent itself, I found on the website of the US patent office.
Information about the producer too but unfortunately I did not find anything in the topic of destination itself. Was this plug used for barrels, barrels.
Thank you in advance for your help. "J"