Abelone & Silver Tone (Sterling?) Stamped on Bottom Pill Box (Taxco?)New Unused

Here's a lovely pillbox. Abelone Shell on top, silver toned body and clasp. In beautiful condition. I bought this many years ago, and it sat in a box all this time. I thought it was sterling when I bought it; It's stamped on the bottom, but I can't make out what it says. Looks like maybe Taxco and Mexico? There are numbers as well, but I think double stamped so hard to tell. Please see the photos.