Here is a repair all too common on these Rhodesian pipes. The owner bangs it to tap out the ash and the briar chips off on the thin rings. This one also had a large burn mark on the rim from a cigar torch lighter but not as bad as some I’ve run across.
I lightly topped the rim and sanded as much as possible without changing the profile. After wiping down the stummel with alcohol, I filled the missing piece with CA and briar chips, ending with chips on top.
After drying, I filed and sanded down flush with the surface, then used a serrated knife to cut the grooves back in. A wipedown of olive oil and off to the buffers: green and red tripoli, white diamond, carnauba wax and a final clean buff. The stem had minor tooth marks which were removed with a little heat and sanded/buffed to a mirror finish. Thanks for looking!