I would agree with you, except the size markings position indicates factory to me. I agree 1960s.Those are intriguing, but I think they are all user-mods.
The single-hex ones are standard model numbers for mid-1960s combos (7-piece set N65R). It seems unlikely that they would have ALL been conserved from open-end-damaged combos, so maybe someone routinely used the box-ends, but didn’t want to carry the extra weight of rarely-needed open ends (I think the well-used roll pouch supports this), or needed a shorter length in a restricted space.
The double-hex one is a cut-off DBE from the 1940s, I think, but I don’t recognize the model number - maybe a different manufacturer?
The "725-B" is the ISN (the other end was originally a 12-point box with a 9/16" opening) and Williams, Armstrong, Billings & Spencer and a few others used an 8000 series "8ISN" scheme for double offset DBE's, but I don't recognize the "C" prefix before the "8" or that sunken panel shank, either.I don’t recognize the model number - maybe a different manufacturer?
??? That's exactly where the size was marked on the 11xx streamlined combination wrenches of that era. A PO chopped them off just before the size marking, smartly retaining the size marking, as LS alluded to. I think them all being so well-done (chopped and finished uniformly), the retained size marking, and especially the entire set being chopped like that gives an overall effect of it being a special factory SBE set.I would agree with you, except the size markings position indicates factory to me.

Thanks! I haven’t had a chance to check mine. I thought they were on the head. I had a metric set that got away from me at some point. I think I have a couple standard left. I’ll check.Right. Here’s an easy-to-grab Outline 1116H long-pattern single-hex showing the position of the size marking. (Flanking are two standard-length double-hex combos. Most of my Outlines are metric.)
I think Bonney started marking the size in this position toward the very end of Streamline, and carried it over to Outline. It can be read upright when the combo is hung from a peg hook.![]()
I hope this ok to chime in with here ?
I just grabbed these critters.Never seen any like them. I was searching "Bonnie box end wrench set" and...BANG !
Yes they did make 6 points metrics as they are listed in the 1986 tool catalog on page 10 but they only have 10-19 MM listed. I do have have 4 of the metric 6 points a 8MM a 10 MM a 11 MM and a 12 MM. I have a comprehensive set of long metric wrenches but I have an elusive 10 MM 12 point that I was using somewhere in my shop.Great looking metric set, VWPower
I wonder if Bonney ever made 6 point metric combinaiton wrenches!
The Chrysler Master Tech tools were given out from the 1960's into the early 1990's. I have a set of universals sockets that I got off eBay that was awarded in 1991.If you search the thread on "Chrysler" you will see other examples, including entire sets in pouches and boxes. All golden-plated or trimmed. Given out to those who took the course in the 60's.
The Chrysler Master Tech tools were given out from the 1960's into the early 1990's. I have a set of universals sockets that I got off eBay that was awarded in 1991.
I do know it was at least to 1991 as these universals do show.Yep, my FIL has a set of the Loc-Rite line wrenches that were given to his dad between '64-67 while he worked at Chrysler. Never knew they were awarded all the way up through the 90's.

Oh shoot, that is nice! And I need one! LOL
Definitely a You ****!A buck a piece? You stole those wrenches!![]()