Re: ~ Plomb tool picture thread - show your stuff!
Yes, Mostly.
You find pebbles on some Plomb tools far before 1945. Pliers in particular, all the way back to 1939.
And you can find pebbles on some Proto tools all the way forward until--well, I'm not sure, but at least past 1979. PlomBob here on GJ remembers seeing NEW Proto pebbles for sale, and I don't think it was that long ago.
So the "pebble period" spanned 40 years at least, not the three claimed in AA. AlloyArtifacts is a little sloppy in this bit of history but are reasonably accurate if you're just talking wrenches.
Wrenches, yes Plomb Pebble wrenches AFAIK were constrained to 45-47 and maybe a little into 48. I actually think 47 was the last full year they were actively produced, can't speak to stores in the warehouse. PRVTV was registered Feb 48 but first USED in Jan 48. The grindoffs probably occurred early to mid 1948.
Regarding the pebble finish, I primarily meant ratchets within the Plomb-marked tools era, since those are what gol4 posted photos of.
I probably could have worded my answer a little more clearly, but sometimes I do well to barely keep my train of thought long enough to type a few words and press submit.
Regarding Plomb/Proto pebble finish in general (and this could get both wordy, and derailed of thought)....
I've never paid much attention to Plomb-era pliers, because I've only got a couple. Now I have to find more just to see (dammit).
I've been buying new Proto tools since the mid-60s. Most of my Proto tools date from the mid 60s to the early 80s. But, I've only bought a few Proto pliers (70s era). Most of my pliers are Snap-On "Vacuum Grip"--which is actually a poor name--they should have called them "Vacuum Slip" because that would be more accurate. Snap-On might have done well to have borrowed Plomb/Proto's pebble finish instead of those stupid little circles.

See, I told you I'd derail. Back on topic...
There were the two styles of Pebble finish on the wrenches--the long pebble strip on Plomb era wrenches, and the little pebble boxes (for want of a better way to describe them) on the Proto LA era wrenches.
Regarding PlomBob seeing Proto pebble finish as late or later than 1979, yes, pebble finish was on certain things for a long time. Two things in particular--long after the Plomb era--cross arm pullers, and single-end flare nut wrenches. Why change a good thing, or something like that.
But, I'm not sure things after the late 70s would have been still being made with pebble finish. Rather, they might just be older dealer stock. I say that because while I've got Proto 6 and 10-ton crossarms with pebble finish from the 60s/70s, I've also got a 6-ton crossarm I bought new around 1980 that doesn't have pebble finish.
I'm pretty sure that when they changed the size of the forcing screw around that same time, they dumped the pebble finish on the crossarms.
I'd be interested to hear what other pebble things remained at that time, because aside from the pullers and the flare nut wrenches, I can't remember any other pebble stuff from the 70s. Not disagreeing, just that I can't remember.
I tried to find PlomBob's website, since maybe what I'm asking is already there, but plombtools.com which I thought was his, isn't working now.
Speaking of older dealer stock, I've got Proto "flying lady" tool rolls and box labels I bought new in the late 60s/early 70s, but they're probably just older dealer stock, because I'm pretty sure IR was using the newer same-shaped logo but minus the flying lady by 1970 or before.
And maybe even better than that, I've got a "Proto Los Angeles" carbon scraper that I got new in the mid/late 60s. I'd guess there must have been a lot of stock and not much movement on that one.
So, if some of those things happened to sit on the shelf for an awfully long time, why not pebble finish things too, or at least maybe some of them?
No argument that Alloy Artifacts may be a little sloppy on Proto and a few other things. In their defense--because I know some of the guys who have contributed to both AA and to Ed Boudinot's old Plomb site, and I've contributed a few things myself--they (AA) have done a better job of assembling a Proto webpage than Stanley has.
Funny side note: The Stanley website erroneously locates 1950 as the first date for PRVTV tools. They can't even get their own history straight. LOL
Not trying to defend Stanley, but wasn't 1950 the deadline for the name change to be completed? That may be where Stanley got the 1950 date. Maybe Stanley just had someone look in the Risk Management files instead of actually looking at the old catalogs, if they even have any of the old catalogs.
