Can anyone tell me

Likewise,agent_H,it'd be great to see the tools...

Chances are the dog-headed hammers were used in adjusting the rpm's of the blade...circular blade has that hemispherical cross-section,like an umbrella,and was forged so that the centrifical force would straighten it flat at a given number of rpm's in work....Remarkably,those saw-doctors of old could alter the blade,to tune it up or down(depending on the gearing of the saw's engine),plus/minus something on the order of 5 rpm i believe...(one needs to stay within 50 rpm at least)
 
I refurbished and sold a Plumb Victory before I really appreciated what it was. I can say that it was the hardest steel I have worked on since I started this crazy hobby.
 
Agent_H,i have done such work in the past,and am still working some,in an arcane,traditional manner.

(and it is as a smith that i speak;forging the eye and the poll is where the real work lays,it is extraordinary challenging.Cleft-welding of a steel edge is child's play,as compared to forging an axe.)
 
So it is looking like the answer is no. It is unfortunate that information seems to be lost.
 
I'm not surprised that in the era this may have been considered a "trade secret".

Nowadays, anyone can have a lab tell them what elements, and in what proportions, are in a piece of steel.
 
daizee said:
I wouldn't get too hung up on the alloy. It's going to be a fairly simply carbon steel. A good heat-treat on a simple steel will out-perform a crappy or rushed process on something fancier. Of course in the world of collector curios, it IS an interesting question.
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But if you wanted to send the tool to a local heat treater, for example to have the poll hardened, they would require you inform them of the steel type. And even for home blacksmith it would be helpful to know specifically what you were dealing with. General hardening/tempering methods with file testing can get the job. But you're less likely to make an error if you know what steel you're dealing with.
 
Square_peg said:
Somebody, probably Steve, posted 2 ads like this just last week. The other one was a year or two earlier than this 1944 ad.

Plumb%20Victory%20ad.jpg
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My eyes aren't as good as they used to be. Can anyone discern whether it says Champion, Victory, (or what-ever) within the illustrated stamps of this 1944 Plumb ad? If in fact Plumb Victory models were in production already during the war when did this feature begin and when did it end? The National pattern, in particular, intrigues me because it was brand-spanking new and granted copyright in Sept of 1948. I'd have thought Plumb would have wanted to keep something like this under wraps until that time.
 
300Six said:
My eyes aren't as good as they used to be. Can anyone discern whether it says Champion, Victory, (or what-ever) within the illustrated stamps of this 1944 Plumb ad? If in fact Plumb Victory models were in production already during the war when did this feature begin and when did it end? The National pattern, in particular, intrigues me because it was brand-spanking new and granted copyright in Sept of 1948. I'd have thought Plumb would have wanted to keep something like this under wraps until that time.
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This earlier thread by gben had a close-up of that stamp, and as I recall it did look like the word VICTORY (but the resolution was bad). The close-up images are now gone, but there is more discussion:
http://www.bladeforums.com/forums/showthread.php/1411468-New-better-Plumb-timeline
 
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