mod vintage Franciscan earthenware Nut Tree salad plates, retro 1970s dinnerware

Set of six Nut Tree pattern Franciscan salad plates with a nice heavy weight and a mod design in brown earth tones and pale grey blue. These are vintage 1970, I think.

The places are 8 1/2" in diameter, all in very nice condition with very little wear or scratching. None have chips or cracks.