Post a pic when you get it. I've found that 42" to 54" one man saws are the most useful.
I grew up with saws around but my grandfather was the one that sharpened them. Personally, I don't have a lot of technical experience with man saws other than running them in my youth while my father explained, "Character Building" lol.
This is the one that I've ended up with recently. The handle is solid and the hardware doesn't look like it was molested too much (relatively clean screws), it is straight without dents, and it's nice and rusty.... I mean it seems to have a nice patina. Blade is 48" - 53" overall. Handle holes in the blade are all intact without obvious use or the handles were sized right/tightened if used. Maybe a little worm activity at one time?
Since we have some experts here, I was hoping to find out some basic information on this one or on them in general.
1. The tooth pattern is... champion? Is this a really worn saw or is it close to what it should be?
2. By outward appearances, does it look usable?
3. Does it look like someone did a hasty or inexperienced sharpening job on it? There are some pretty sharp "points" in the drops next to the rakers and it looks like that between almost all of them. Might be the tooth pattern but I don't know them well-enough yet.
3. What do you do to clean the blade up/remove rust?
4. Given the tooth pattern, what would I be cutting with this old gal?
It certainly doesn't look like some of the beauties I see on here so I'm kind of looking at this one as a "get to know ya" saw for the experience. Really want to learn to properly set and sharpen them so I am not super concerned about the $26 I have into it so far.
Don't have a saw vice or setting tool yet - some advice on those would be great as well. If anyone has a helper handle they just don't know what to do with...

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Use all the saw-specific jargon you need to.
There is a place nearby that has racks of used, one and two-man blades so if this ends up being a dog, what I learn from this one will just refine what I am looking for.