Reply To: Old Disston backsaw mystery
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Yes, I initially thought it might have been some kind of taper, but it’s not a blade-long taper as in the photo. The tooth line in the photo is straight; it’s just that the plate there is narrower at the toe than it is at the heel. In my case, the width is the same until the last 3/4” to 1” of the toe, when the tooth line angles upward. It’s not a sharp angle, as the intersection of the lines is a little rounded for smoother cutting, and there is not a continuous curve at the toe of the saw. It’s more like two pencils being crossed at about 177*. (I’m sorry, but I’m not able to take a photo for this, so the verbal description will have to do.) it’s very curious.