new Estate Pipe

[deadrise]

I got a few questions

newpipe


Pimpernel Blue Briar Estate Pipe
Stem: Replaced
Bowl Mouth: Slight build up from "3 to 9" ??? what does this mean
Pipe Dimensions: 4 1/2" long x 2 1/2" tall x 1 1/4" wide
Interior Bowl Dimensions: 1 3/8 deep x 5/8" wide
Weight: 37g
Nomenclature: Pimpernel Blue, 173 ???? and this mean

I hope the steam is just like pictured that is a nice stem
and anyone have and info or idea if this pipe is any good?