LEVERAGE TOOLS self-adjusting locking pliers, clamps, etc. are now collectibles.
|One of the newer pieces in the Richard Carter auction inventory was a set of ratchet-action open end wrenches patented in 1957. |
The set appeared to have been produced in the 1960s.
The upcoming Don Ervin sale includes a Vise-Grip TOOLKIT combination tool that's probably 10 - 15 years old.