Anyone Know What "103" Means on this Silver Ring?

[cambria09]

Hello All. Found this last night at a 1920's home site. I get the "925" but what does "103" mean? My wife says it's a model number.

Thanks for the view and good luck. C9

 

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[Breezie]

I'm not sure what the 103 means, but I have seen sterling silver rings made in Mexico with the 103 with the 925 mark. It could be a maker's mark.

Neat find
Breezie