just old pliers,not sure what to think about the stamp?
Neither do I. A wag would be Chinese.
I'm reminded of Japanese copies of U.S. tools made prior to WWII. Years ago at a Missouri Valley Wrench Club meet, a member showed a pre-war Japanese socket set that was an exact copy of a Starrett 443 (patented in 1916), but with Japanese characters stamped on all the parts.