French Dragoon 1872, Maker help

[collector rich]

Hello,

Please look at my Dragoon Helmet, 1872 model. Maker mark is very hard to read.

Looks like Wings over BRE.... then SGDG

Belt clasp is missing. Otherwise a nice clean helmet with horsehair comb.

[just]

Hello

you probably have S.H. above a winged helmet
and then "breveté SGDG", that means patented

I don't know who is SH ??
I look for...

cordially
Didier