I'm guessing that is a model 3100 size 29 made for M&P (Model 10) with
2" barrel?
I've been collecting the 3100 (carved) and so far have 5 sizes that I have
guns for.
Some think they are embossed, but I did the research and know that they
are actually hand carved. They called them leather engravers back in the
days when the 3100s were made.
The Hunter fit chart does not show 3100, but they are the same sizes
as the 1100s. 1100 is plain. 2100 is basket weave, and 3100 of course
is carved.
Great little holster you have there.