Perhaps a bit of proof you could be correct. The specific tool certainly exists.What's interesting to me is how the dimples reveal what I believe to be their manual placement with a punch. I've looked at all the early 4875's on this thread that I could find and they're all in slightly different positions. Some are higher up. Some, like that one, are so close to the edge it barely made it.

The "drill chisel thing" is a star drill for making holes in concrete, or rock if you are a glutton for punishment.
Like that old wrecking bar.My little Plomb collection
I haven’t forgotten about the dual mark 3/4 I have for you
Is it cracked? It’s almost never found without a crack








Edit****A Thorsen version I spotted in with the Thorsen sockets today. 



...who was just as honestly misled by the branding as I was...Feeler gauges. Both #000D. Proto on the top, Plomb on the bottom...
A more general search on "feeler" led me to this unidentified reference......with round 'O' which would seem to indicate pre-1934 manufacture.
...that on closer inspection of the photo, is, I believe, another 000D....early feeler gauges...


We've seen a few examples and talked about the rare PLVMB pebble field wrenches before (and if you search this thread on "pebble field", you will find them) without much definitive headway.I could not find much info on it but it is a rare one for sure.
You worry me. 000A is one of the last items needed to complete my '47 Veterans set, and they've so far appeared to be unobtanium. Only one has come up for sale online in the last two years and it was a 000D model. Eventually, I'll convince someone to sell me theirs! LOLThe old "Fool me once, shame on you; fool me twice, shame on me," saying was in play when I found this teeny tiny feeler gauge No. 000D at the flea market yesterday.
Some of you may recall that I had found and posted a #000K a few years ago, linked here, and couldn't find them in any early, pre-1934, "PLOMB" (with an "O") LA era catalogs. Enlightened by @Provincial, they are not early, but later, despite the "O". As I opined at the time, almost certainly because of a supplier/OEM not as diligent as they were about their branding. With the "LOS ANGELES" marking, that inconceivably late "O" makes these seem even more deceptively early, of course.
Here they are now together.
There aren't too many of these model number 000-x series gauges on the thread. A search on the model numbers (000A through 000K) reveals one posted way back in 2012 by our OP...
...who was just as honestly misled by the branding as I was...
A more general search on "feeler" led me to this unidentified reference...
...that on closer inspection of the photo, is, I believe, another 000D.
So far, unless I am mistaken, his, the OP's, and mine are the only 000D's posted. Maybe @mustangSR70 will kindly confirm that. In fact, I'm interested in seeing if it's marked "No. 000D" or "#000D." The "No." style marking seems to be earlier than the "#" style marking.
The only other 000-x series gauge I can find (identified explicitly by model number or as a "feeler" in the text, which is the only way the search engine will ever pick it up) belongs to @Ricky Joe, who has a PLOMB "No. 000E", posted earlier this year, here.
I have never seen a No. 000A "in the steel", so to speak, or even in a photo, only the rendering in the catalogs. If I ever find one, it's yours, FREE of charge or trade, for the yeoman's work you did on the wartime newsletters!Eventually, I'll convince someone to sell me theirs!
I have never seen a No. 000A "in the steel", so to speak, or even in a photo, only the rendering in the catalogs. If I ever find one, it's yours, FREE of charge or trade, for the yeoman's work you did on the wartime newsletters!
The Plomb 000A feeler gauges (along with the 000AA, B, and BB) used the 000C holder, which I don't believe was generally marked 000C because it was used for all those sets (or could be purchased separately if you were buying individual blades for a custom set).
Thank you for the info. This wrench had me scratching my head for a while And about the the plating I don't think is cadmium. I been wanting to polish it a bit since the plating is almost gone.We've seen a few examples and talked about the rare PLVMB pebble field wrenches before (and if you search this thread on "pebble field", you will find them) without much definitive headway.
It's not only the pebble fields that are befuddling about these wrenches. It's easy enough to imagine a sequence from PLVMB full pebble panel to PLVMB pebble size fields only to Dual-Marked PLVMB-PRVTV pebble size fields only to PRVTV pebble size fields only. In such a sequence, your wrenches would be very late PLVMB pebble size fields, perhaps just before January 1949, when Plomb Tool Company started dual-marking tools. But your wrenches are MADE IN USA. Consensus is they made that switch in early 1947 and we have plenty of PLMVB full pebble panel wrenches that are already marked MFD. IN USA.
These PLVMB wrenches are real curve balls, seemingly much later (late 1948-ish) - with the pebble size fields, and yet earlier (1946-ish) - with the MADE IN USA marking!
Here's another layer of analysis...
Notice that neither of them has the tell-tale electroplating rack burn marks that @z28lsc 's 3031 DOE dual-ie is conveniently showing in his photo. The earliest we can possibly see those burn marks on PLVMB wrenches (and there will be a third mark dead center between those two on the flip side) is when the Plomb Tool Co applied for the patent for the rack, which was December 1947. Note, significantly, that we have seen the notorious marks on plenty of PLVMB full pebble panel MFD IN USA wrenches. Nothing escaped "the rack" after it was introduced. (If this is new to you, click here for more.)
That means your wrenches were almost assuredly made before December 1947. And because of the MADE marking, very plausibly in 1946.
One theory (and I can't remember who to attribute it to..., but I don't recall it being mine...) is that Plomb was experimenting with pebbling before they went full panel.
This is a first cup of coffee post and I reserve the right for second, third, and fourth cup updates.