I own two, my grandfathers (he died 1952 at the age of 84) so they are quite old. One is a 'panel' saw the other a rip. Both still have the flexibility to fold the blade into the handle and spring out straight as a die. My problem is that the 'panel' is getting very difficult to sharpen - I have broken two teeth on setting it last time.
Q. can anyone identify these saws if I post more details?
Q. any ideas as how to get past the sharpening problem (I can wear out three files)
