Stanwell Regd No 969-48

Just bought a pipe at a market in Germany for $5, but it has a bad stem. There's a small chunk out of it at the end of the mouth piece, at the top. Otherwise, the briar looks good. It's rusticated with a nice grain.
I don't know how to identify this pipe. It says "22" and then Stanwell with a slight variation in the name stanwell (larger "ST" and "LL" with the "anw" in slightly smaller text).

Beneath Stanwell, it says "Regd No 969-48" Hand Made In Denmark.
To me it looks like a Dublin shape.
Anyone know more about this type of pipe and how hard it is to get a replacement stem? Pretty cheap find, and while there's a pile of cake to ream out, it seems serviceable. The stem doesn't have any markings or a logo on it, but it fits perfectly.
Any ideas are appreciated. Or even if someone has a contact with Stanwell so I could see if they might have a replacement stem to buy? The stanwellpipeDOTcom site doesn't look legit to me.

Thanks for the information, it's much appreciated!

Thanks for the information and tips. I'm going to try and find a replacement stem without sending the pipe in to be fitted, if possible. Just too much uncertainty with moving around for the next half year. Perhaps the stems are close to a standard fit?
I took some pictures. I'll need to give it a good reaming and clean it. Cleaning a rusticated pipe seems like a job, but maybe it won't be so bad. It was $5, so it seemed like a good deal at the time.
Would you guys pay that much for this pipe? I didn't take pictures of the stem because it is horrible. Heaps of gross looking oxidization and a big chomp mark out of the mouth piece. Even if it did polish up, it'd still be trashed.