Most damage was to the feet where all the edges are chipped off - this comes from sliding the pots around on the benches, tables or in your vehicle and is a commonly seen form of damage. I see it a lot on European pots and less so on Japanese pots so I suspect the clay used or the techniques in manufacture may have something to do with it, but that is a bit of guess work based on observations.
First thing was to clean the pot well and assess all the damage
There are several chips in the rim too, both inside and out - the pot certainly has had an active previous life but I'd had a good look at it a few months before deciding to get it so none were surprises.
First job after washing and drying was to rough up the edges with a file, then apply an exterior 2 part epoxy filler
And here we have a lovely UK made pot back in its prime
Dereck Aspinall - Soft Rectangle - unglazed, 23" x 16" x 5"