My pleasure. One addendum on the "720" marking, which continues to fascinate me....
Even though Bonney, like many other mfgrs, adopted the Williams numbering scheme (whose high and almost unanimous adoption rate is why it became known as the industry standard), they also extended it - apparently some time between 1925 and 1933, which contains the year (1929) your wrench was made.
This will take some explanation.
Most DOE engineers wrench charts start at 721, which is a 5/16" x 3/8" wrench. Williams' own wrench charts in Williams period catalogs up through 1943 start at 721. I couldn't find a Williams catalog with a 20 wrench in it. And true to form, in the Bonney 1925 catalog their smallest wrench is the 721. However, in the Bonney 1933 catalog, their smallest wrench is a 1020 (5/16" x 1/4").
If you don't understand ISN-embedded model numbering schemes, the "20" is the ISN. The "1" is a type of wrench or steel prefix that many mfgrs, including Bonney, used to distinguish engineers wrenches of different compositions, typically alloy from carbon, or alloy from special alloy. The "0" is just a filler, because that digit is needed for ISN's with a "7" prefix. Williams' first wrenches all had whole number model numbers, 21 through 40 or whatever. When they started making them with new, different milled openings, they needed a way to give them a model number that fit the system, but all the whole numbers were taken, so they used the "7" prefix to squeeze in a smaller wrench, and a letter (A, B, and C) suffix to squeeze in larger wrenches. A 723 (3/8" x 7/16"), for example, is smaller than a 23 (13/32" x 1/2"), but they couldn't give it a "22" because that was already taken for the 5/16" x 1/2" wrench. A 723-A (3/8" x 1/2") is bigger than a 23, but they couldn't give it a "24", because that was already taken for the 13/32" x 19/32" wrench. If you look at any DOE wrench chart in any period catalog, this will all become very apparent.
That was all necessary prelude to make sure the significance of my real point is understood.
Bonney's carbon steel line wrenches had straight up ISN numbers. Their CV line used 1XXX. Later, their Zenel line used 3XXX.
A Bonney CV eng wrench with 5/16" x 1/4" openings, therefore, was model number 1020. "1" for the series, "0" as filler, and "20" as the embedded ISN.
A Bonney -ZENEL- eng wrench with 5/16" x 1/4" openings was model number 3020. "3" for the series, "0" as filler, and "20" as the embedded ISN.
To emphasize my point, here're examples that have a 7XX ISN...
A Bonney CV eng wrench with 7/16" x 3/8" openings was model number 1723. "1" for the series, and "723" as the ISN.
A Bonney -ZENEL- eng wrench with 7/16" x 3/8" openings was model number 3723. "3" for the series, and "723" as the ISN.
Finally, the point.
A Bonney carbon steel wrench with 7/16" x 3/8" openings was model number 723. No prefix for CV or Zenel. Just 723. And again if you look at any wrench charts, you will find 27's, 727's, and 727C's, 29's and 729's, etc etc.
A Bonney carbon steel wrench with 5/16" x 1/4" openings should have been a "20", NOT a "720." The "7" in "720" implies smaller than "20" sizes.
When Bonney decided to make a wrench smaller than the 721 in 1929, I think they made a mistake giving it the 720. It should've been just a 20. And it was a mistake they recognized and corrected in the 1933 catalog.
You have a cool novelty wrench there.
If this is of interest: the Bonney is date coded GU. The Merit is a 21 and sized 13/32 - 5/16.It wasn't very far!
It was bothering me, so I went digging in a box of old weird miscellaneous wrenches I haven't pulled out in years.
Sure enough, I have an ISN 25 of the same style wrench as your ISN 720. And I have to take back the wartime 585 adjacent theory. I think they may have harkened back to this marking scheme when they were turning those out, but our wrenches are much older. You can tell by the thick shanks and thick, round heads. Mine is also an "LU" code, but it refers assuredly to 1929, and together our wrenches allude to either an incredible cross-Atlantic coincidence, or a very short production run. I'm going with the latter.
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I need another collection like I need a hole in my head, but the ones I'm interested in have both box ends the same size, with one end bent and the other straight. For certain compressor and motor bracket jobs having a straight end with a deep offset end could've helped. Not doing that work anymore getting them is just a hobby. As I recall the smallest size was 7/16" then went up to 1".Something like this Bonneyman. What is in the picture is 3 of the 2893B one of the 2894C and one of the 2895C. Interested in any of them private message me.



That's a good thought. I have a midget set with the same finish with no sign of there ever being a decal.I wonder why Bonney didn't apply one of their painted logos on the cover? This might have been included in one of the bigger sets maybe?
I've seen yours and others before, OTG. And of course I have all kinds of waterslide decals in various states of intactness or disintegration on other brands' boxes. I didn't mean to suggest that none of these Bonney boxes had them. And I don't mean to suggest that it's not possible that decals wore off. But I am saying that it's possible that some never had one. In cases where there is no wear of the finish itself, I think some iota of remains of the decal would be there, and I think JjKk's theory has some possible merit.
Too many projects already but we could probably try to get to the bottom of it with catalogs and magnifying glasses.![]()
Not really. Not as much as you may think. In Bonney I only have the one 1/4-drive set in a box with that brown wrinkle finish. I am just skeptical of the idea that all found boxes with no decals means it wore off.Lugz I know you are very familiar with these sets and the decals!
Good questions. Maybe LS has a better handle on this. I sure don't. My Bonney affliction stems from wartime and most of the Bonney tools I collected for years were not toolbox tools. Not sets, anyway. DOEs and DBEs. As my collection has grown away from that into socket wrenches and other things, my knowledge base has not really caught up. My hunch would be black (early), brown (wartime), and then red (postwar), but I could be wrong.Oh and what years did Bonney use the brown boxes or the red boxes or the black boxes?
Interesting.Could you have chosen the color back then? If I remember correctly in my #139 catalog one of the adds gives a choice between the 3 colors.
Back in the '80s I had (I think) a set of Bonney ratcheting flare-nut wrenches. They seemed pretty new when I had them. I never used them, but they seemed pretty slick.
I lost them when my box got boosted in that same decade. I've looked a good bit, but I have never seen another wrench anything like them.
Does anyone know what I'm taking about and perhaps have a picture?
Are these the ones you're referring to?
They were called Cam-Loc wrenches. I've got a nearly complete set. Where they'll fit, they work great.
There were single end and double end versions. Really nice for repetitive work!

Unfortunately, no. Not even the Chinese wanted to re-issue them - there's too many small parts and springs inside and after all they're quite large so not conducive to work in a modern car engine bay.
Unfortunately, no. Not even the Chinese wanted to re-issue them - there's too many small parts and springs inside and after all they're quite large so not conducive to work in a modern car engine bay.
I never found them lacking in strength. Though I never tried to break a frozen fitting loose with a cheater bar on them.
Here's one I took apart to get working again. Took some doing to hold all the moveable pins in place against the spring whil fitting the other pins and cover in place!
That, and the production costs. There must have been a crazy amount of hand labor to assemble that thing. Even the Chinese couldn't figure out a way to make it work and produce the profit they wanted. Given that probably not many would be sold. Too many simpler ratcheting OE tools out there already.Yeah, I'm guessing too many warranty claims


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1928 patent by David Hume & JE Durham Jr.
From the differences in the logos, I would guess the stud remover to be from the late 1920s (although it could have persisted longer) and the hinge handles to be from the 1930s.

I know nothing about "Facebook" or Bonney. This was posted in the "Ebay hot deal" thread yesterday at 15:11 Pacific Time. May or may not still be available, but for those interested:
Ebay or Auction Deals Permathread!
* shipping costs may vary depending upon your location! * * twertsy's tool extravaganza continues! * https://www.ebay.com/usr/vintageratchets ;)www.garagejournal.com