Nice looking sets.
Probably 60sAny idea what timeframe these are from?
Almost certainly not made by Husky. They look like the GRIP-ALL, Bonney, and other 3rd party production vise-grip made by Petersen well after the locking release lever was added in 1950. You could poke around in these threads for a narrower than "60s or 70s" answer, but it was that era.Any idea what timeframe these are from?
We don't know who branded them "Grip-All", but they are identical to Bonney. Bonney clearly did not make them. Probably Petersen licensed. Don has an example. He posted it in the midst of my Lugzsonian thread 'Curator's Corner' on locking plier-wrenches, linked here.
@d42jeep and @RAS61 have the same locking plier-wrench marked "GRIP-ALL U.S.A." in the same exact place. It's been discussed before without any definitive answers on OEM. Someone was obviously making them third party for several retailers. EDIT: Don replaced a non-original jury-rigged adjustment bolt on his with one from a Petersen and it was a perfect fit. Derive from that what you will.