I should have mentioned this in my first post- I spent several hours on the
Disstonian Institute site trying to ID these saws. I think I have the first two,
but could not figure out the last one. None of the etchings are visible enough
on any of the saws to help. Maybe the handle on the third saw is not original?

Cleaning question- when cleaning and restoring planes, I will often soak the
plane iron, cap, etc in a citric acid bath overnight to remove rust. Could I do
the same for the saw plates, nuts, and medallion on these saws? Or, could I use
Evapo-Rust? I’d prefer not to use mineral spirits (but I will if the general
consensus is that’s the best way to clean and de-rust).

Thanks, 
Dan