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Statistically, probably early P&C though I do have a couple of examples like that from other companies.

Ebay sighting. Kind of interesting as the box still identifies these probably war time restriction, 8742 Vanadium free alloy wrenches as Chrome Vanadium.

Is the patent I showed even correct? I didn't really look at it. I see the one you're showing has R.C. Morris's name as the patentee and he appears as being one of the Holland Steel "directors" on the letterhead.

Thanks. Also looks like the Hardware store being addressed just went out of business in 2025 after 150 years!

So besides having the cool letterhead / product illustration this overdue invoice letter cracks me up...Dec 24 1927...Not just Christmas Eve but also a Saturday. Frickin Old School....Just hope Scrooge let Bob Cratchit add a little coal to the stove. Anyway, might be the same patent as Bull...

Listed under Plumb/Plvmb. I sent that listing around to people I know who I thought might not have seen it but I guess the $70.00 + $10.00 was more than they were willing to pay. Usually only see these one at a time...Did you have any before these?

Nice! Starting around post 789 there are a number of entries about this set you might want to check out.

Yep. 1475 Bush St. San Francisco

Anyone want anything while I’m here?

Mid 30's shot of Bradley Helve Hammer at Cornwell plant in Mogadore, Ohio.

and the larger diameter one is actually marked MSY8?

In the pic showing 2 tools with different diameter stud holes which is the "Y2"?

Thanks. The designer of the badge did a good job, I like the stylized "L" and "A" on either side of the California Bear. About that patented handle...I have an old auto jack with one of those collapsible/ folding handles that has that same American Grinder patent handle. I think the Jack was a...

Saw this on Facebook Marketplace...think it's been there awhile. Looks like a rough old Blackhawk socket case ( you know, the type with "Bottom" embossed into the bottom side) with a 20's era Los Angeles Auto Assoc. badge.

Old L.C.N. hydraulic door check.

So this would be the WW2 version of Owatonna’s NAF contract breaker bar. I believe their pre-war NAF breaker was numbered 377938-6 or something close to that. Obviously this only has the correct 1110-2 number and not the USN NAF. The earlier ones had a “N.P. “ prefix before their 3XXXXX-X...

Yeah, I should've said double hex.

ebay auction for 1948 Plomb newsletter or whatever and I noticed the G.M.C. (diesel- electric locomotive) corresponding numbers for the Plomb tools are 7 digit #'s beginning with 8. Pretty close to that 1" drive socket that shows up every now and then with the funky hex cross hole. I'm sure...

Check if it maybe isn't 5z-3566 instead of 63

Hi Roy. Yeah, I'm sure we could amass dozens of "exceptions" to the widely recognized rules and come up with various plausible explanations from multiple production facilities, contractors /tool types, employee mistakes, undiscovered code meanings, overstock, oversight, not giving a ****...