Mexican Sterling Bracelet Mark Eagle Stamp - ID?

[suesilver]

I know I have seen this mark somewhere but there is no name to search by. I have gone thru visual resources and can't find it. Also, what do you call this type of treatment- it's not damascene I don't think... I think the stamp is Plata 925, Sterling Guad Jal Mex (Location?)

Thanks for any help.

[ValkyrieVixen]

Maybe Niello work?
Plata means silver, the location is Guadalajara (city), Jalisco (state), Mexico.
Eagle 19 has 7 names associated with it, none of which seem to use that symbol that looks like a Mayan pyramid. I've seen that mark on Mex pieces before but don't remember if it had an artisan to go with it.

[suesilver]

Thanks - Niello is probably right - just couldn't get that word out of my head!