Could you help me identify the country, manufacturer and period?

[Nata37]

Hello, could you help me identify the country, manufacturer and period?

[AG2012]

There is Native American (Navajo) E.Curley maker as well as jewelry with the same E.Curley, doubtlessly in the stile of Native Americans. Also no ``sterling`` mark, meaning lower fineness was used.
Made in seventies 20th century.
Regards

[Nata37]

There is Native American (Navajo) E.Curley maker as well as jewelry with the same E.Curley, doubtlessly in the stile of Native Americans. Also no ``sterling`` mark, meaning lower fineness was used.
Made in seventies 20th century.
Regards

Thanks a lot for your help!