Vintage Mexico Sterling Silver Sodalite Ring

Reposhing this item I purchased from @missmallymac. Loved it, but ready to rotate for something new. Vintage sodalite ring marked Mexico 925 with letters which I cannot read…possibly makers initials? Band width is 1/4”. Circumference of the face of sodalite stone- 7/16”. Measures roughly a size 6 on my ring mandrel, to be safe I’d say it’s closer to 5.5-5.75. Please ask any additional questions before purchasing…thank you!