Plumb and True Temper mono-steel special analysis steel axes

[crbnSteeladdict]

Many times browsing tools catalogs I run into "special analysis steel" term. Finally I got curious enough to dig a little bit deeper.
Not sure how close to those specs was the steel Plumb used in their axes.
https://books.google.com/books?id=sUNEAQAAMAAJ&pg=PA29&dq=esms+"special+analysis+steel"&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjTrrqvqMnlAhXRtlkKHdFCAYAQ6AEwAHoECAAQAw#v=onepage&q=esms "special analysis steel"&f=false

We know TT believed that that soft body, hard bit axes were superior to monosteel ones and kept making top of the line axes that way much longer than Plumb.
https://bladeforums.com/threads/new-batch-of-old-axes-id-help-request-säter-dy.1654869/page-2#post-18946736


In 1957 TT's catalog axes seem to be made from one piece of solid steel.
Recently I have run into this 1959 Kelly Perfect description: Made from solid bar of carbon manganese steel

and from 1959 Keen Kutter catalog : Forged from one piece of special analysis steel

https://archive.org/details/ShapleighKeenKutterCatalog1959Vol1/page/n216

We know Kelly made cheaper monosteel axe heads even before TT's takeover.
There comes the curious part: In 1939 Keen Kutter catalog one can find Keen Kutter line broad axe. Extra durable head forged in one solid piece from special analysis high carbon tool steel.
Who did produce it for Simmons ? Was it TT, or maybe Plumb

https://archive.org/details/SimmonsKeenKutterCatalog1939Part/page/n146

 

[garry3]

Many times browsing tools catalogs I run into "special analysis steel" term. Finally I got curious enough to dig a little bit deeper.
Not sure how close to those specs was the steel Plumb used in their axes.
https://books.google.com/books?id=sUNEAQAAMAAJ&pg=PA29&dq=esms+"special+analysis+steel"&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwjTrrqvqMnlAhXRtlkKHdFCAYAQ6AEwAHoECAAQAw#v=onepage&q=esms "special analysis steel"&f=false

We know TT believed that that soft body, hard bit axes were superior to monosteel ones and kept making top of the line axes that way much longer than Plumb.
https://bladeforums.com/threads/new-batch-of-old-axes-id-help-request-säter-dy.1654869/page-2#post-18946736


In 1957 TT's catalog axes seem to be made from one piece of solid steel.
Recently I have run into this 1959 Kelly Perfect description: Made from solid bar of carbon manganese steel

and from 1958 Keen Kutter catalog : Forged from one piece of special analysis steel

https://archive.org/details/ShapleighKeenKutterCatalog1959Vol1/page/n216

We know Kelly made cheaper monosteel axe heads even before TT's takeover.
There comes the curious part: In 1939 Keen Kutter catalog one can find Keen Kutter line broad axe. Extra durable head forged in one solid piece from special analysis high carbon tool steel.
Who did produce it for Simmons ? Was it TT, or maybe Plumb

https://archive.org/details/SimmonsKeenKutterCatalog1939Part/page/n146

Plumb did make KeenKutter axes.
http://www.yesteryearstools.com/Yesteryears Tools/Plumb Co..html
I won't say they made all of them because I just don't know....

 

[garry3]

It doesn't match up to the True Tempers in the 1938 catalog either but it does other True Tempers of unkown dates.
https://archive.org/stream/TrueTemp...per Tools Catalog 1-R 1938#page/n159/mode/2up

 

[Fmont]

As I understand it Kelly made most of the KK axes, but Plumb did some as well. I could imagine even Mann or Collins supplied one thing or another over the years. There was just *so much* Keen Kutter stuff.

 

[crbnSteeladdict]

As I understand it Kelly made most of the KK axes, but Plumb did some as well. I could imagine even Mann or Collins supplied one thing or another over the years. There was just *so much* Keen Kutter stuff.

I only ask about that broad axe because it might help to point times when TT started using carbon manganese steel, or exactly when TT went all the way monosteel with their premium axes.
Similar question would be:
When Vaughan stopped producing full size axes in USA?
Has Vaughan ever made full size mono-steel axes in USA?