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  1. #16
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    For purposes of comparison here's the profile of a Golden Era No. 12 panel saw.



    The Acme 120's are considerably thinner in profile than the standard era saws. I'll do some more later.
    Innovations are those useful things that, by dint of chance, manage to survive the stupidity and destructive tendencies inherent in human nature.

  2. #17
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    And the No. 77 backsaw.
    It's pretty heavily ground but surprisingly non-uniform in profile.
    Innovations are those useful things that, by dint of chance, manage to survive the stupidity and destructive tendencies inherent in human nature.

  3. #18
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    Default Update

    Been doing desk work past couple of days and in the spare moments I added some data to this study.



    The Acme 120's that preceded the Golden Era were a little harder than the average saw of their respective period and the Golden Era saws were harder by 10% or more than the average, but the post WWI saws and the scraper were all softer.
    Innovations are those useful things that, by dint of chance, manage to survive the stupidity and destructive tendencies inherent in human nature.

  4. #19
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    [QUOTE=rob streeper;2009876

    The Acme 120's that preceded the Golden Era were a little harder than the average saw of their respective period and the Golden Era saws were harder by 10% or more than the average, but the post WWI saws and the scraper were all softer.[/QUOTE]

    Rob

    Very interesting.

    Regards
    Paul
    Bushmiller;

    "Power tends to corrupt. Absolute power corrupts, absolutely!"

  5. #20
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    Default Two more, one hard, one soft.


    The Golden Era Acme 120 handsaws are the only saws that are significantly harder than the average Disston saw.
    Innovations are those useful things that, by dint of chance, manage to survive the stupidity and destructive tendencies inherent in human nature.

  6. #21
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    My interpretation: The only Acme 120 saws that are truly significantly harder than the average saw are those made during the 1896-1917 Golden Era. Earlier Acme's and No. 77's are a little harder but not by very much. I suspect that the GE No.77 is softer to prevent breaking the blade during the fitting of the back. Nonetheless, the No. 77's aren't really harder than average at all. Post-GE Acme 120 saws aren't worth any more than an equivalent D-8, or maybe a D-100 by dint of the wheat handle. If you want a harder and better saw, buy a No. 12. If you want some novelty and are willing to pay for it by a No. 77 and or an Acme 120.
    Innovations are those useful things that, by dint of chance, manage to survive the stupidity and destructive tendencies inherent in human nature.

  7. #22
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    I've added three more Acme 120's to the dataset.

    One of the new additions is an 1888-1896 saw, the other two are 1896-1917's and BOTH are soft! I really expected that these two saws would be similar to the other Golden Era Acme 120's I've analyzed but they're significantly softer. Both bear Acme 120 etches and both are in otherwise decent to very good condition. Seems the QC at Disston was variable throughout the entire history of the company, not just since 1918.
    Innovations are those useful things that, by dint of chance, manage to survive the stupidity and destructive tendencies inherent in human nature.

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