Measurements: i 1/2" x 1 1/2" not including the silver ear wire which appears to have an illegible touch mark. The mark suggests that the ear wires were original to the earrings although I might be mistaken.
Each earring is marked differently. One says "Spratling Silver" in an oval stamp; the other reads: "Spratling Made in Mexico" with the scrolled WS. ...click for details