I bought a Disston saw today for $2. Its button only says Disston Phila. This thing has a lot of miles on the handle. Many miles. No other markings that I noticed, although as I work through some rust I might. It looks like a 6 point but I’ve not measured it yet, because I’m holed up in front of a window a/c and my house is nearing 90. It’s 111 out, last I looked. 👿
Any thoughts? I’m about to dive into the rabbit holes of Google and will update if I find anything.