Posts: 10,716
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Joined: Jan 2006
Location: Orlando, Florida
There are far better saw gurus than I, but it appears to be a No. 7, given the nib. D-7's lost the nib in 1928, so it's at least 1927 or earlier. Lots of useful blade on yours. Sadly, you lost the medallion, which could nail it down to a more specific time period.
Still Learning,
Allan Hill
Posts: 1,275
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Joined: May 2009
Location: Stuttgart, Germany
It's a pity that this blade was separated from the handle and the nuts somewhere up the road. Given that it's aged about 150 years, it's shape is great. No major pitting, still full sized, no visible damages. If the toothline is straight, it seems well worth to be rehandeled. Since the blade is rip pitched, the original handle probably was made without a lambs tongue, maybe like this one (pic from Disstonian Institute)
This pic printed in the right size would be a nice template to make a new beech handle. The screws probably will have to be replaced with newer ones but that doesn't matter since the handle was replaced as well.
Klaus