I got an old Stanley Bailey #5, but after cleaning it a bit, found the mouth is in bad shape. As you can see, it has some fractures at the front, and the whole mouth is concave. I've taken a bit off trying to flatten the sole and see if it was cracked or scratched, and it's cracked. The rest of the plane is in good shape.
Also, was this caused from hard use and the front of the mouth being worked too hard? I've read that the front is where all the action is.
Thanks,
Greg