I found this HPB among the lot of estate pipes I got. It's unsmoked but has some rough spots on the bowl, as you can see. The screw in stinger/ stem is oxidized but in perfect condition. I can't find any info on HPB and am wondering if fixing it is worth the time and effort? I think I can match the color but I wonder if that fill (the largish one) is going to still be prominent after refinishing it? Thoughts and suggestions appreciated as always.