"Silver Mexico" belt buckle info

[Nikita]

Hi:

Have looked all over this GREAT site, but can't find info on the mark I
have on this old belt I got at a yard sale, and can't post a photo without
help from the husband.

The belt buckle has "Silver Mexico" stamped in a half circle with the "Silver" appearing above the "Mexico". The info on this site shows a "Mexico Silver" and lists it as being made between 1920 and the mid 1940's of various silver content but usually above .925.

Is the "Silver Mexico" stamp the same as the "Mexico Silver? Does anyone have a closer estimate on the date is was made?