Read the stamp
Mexican silver marks alpaca
In Mexican silver marks alpaca, a maker’s initials can still identify the workshop that produced an alpaca object. MEXICO supplies origin wording.
MEXICO and ALPACA together
MEXICO supplies origin wording. ALPACA supplies the base-alloy description. If the piece is silver plated, a separate EP or plating phrase can describe that surface. Do not convert an ALPACA stamp into a 925 fineness reading.
What to check next
Compare the letters with PLATA, the Spanish word for silver, and look for a numeric fineness such as 925 on a silver article. A maker’s initials can still identify the workshop that produced an alpaca object.