These screw on vintage mexican earrings are stamped “Alpaca” on the inside of the screw mechanism and “From 925” in tiny letters on the long stems. No artisan hallmark, but having minuscule stamping tools on hand leads me to believe they were made in a shop setting. The earrings are completely handcrafted and in excellent condition. They dangle length is 2” and they weigh 7 grams. Creative, forward-looking design from Mexico.