Vintage 1960s St. Labre Indian School Silver & Turquoise Pierced Earrings READ

Vintage 1960s St. Labre Indian School Silver & Turquoise Pierced Earrings, Tested / READ full description and see all images. In very good condition. I tested the post and the back of the earrings using the scratch method and 18K solution. The post scratching dissolved (probably replacement post). But the scratching for the back of the earring did not dissolved so I believe them to be real silver ( see last image). However since I do not claim to be an expert I have priced these as I would upper end costume jewelry.