earrings marked pierced silver Green turquoise Native American? Vtg

Needs a light cleaning. Cannot decipher the marks says, if you can decipher it, please share. Thank you. I believe they are sterling silver. Green turquoise is considered to be very rare But I am not sure the exact material on these~If you know identity, please share, Thank you My mother was an expert but not me. Beautiful shade of teal green.