Thanks. There are plenty of ways around not having crisp edges. I would'nt worry too much about it. I have a Peter Wright my uncle gave me that is twice as chipped as yours and I use it quite a lot.
I would not buy it myself. The edges looked to have been welded on and it appears the heel is broken off as there is no hardy or pritchel hole. Just my take on it. Someone with more knowledge than me will chime in I'm sure.
Do whatever you have to do to keep them from being inside and playing video games or watching TV. Do what works for you and them. Can always expand, Right? MHO
It's a shame that however dogs came to be, the one that created them didn't allow for them to live longer. I like to think He needs dogs too! I'll say hi to her in the fall when I can see the dog star again along with my old buddies. Take care