Vintage Thunderbird 1980 Acoma NM Pueblo Native American Art Pottery Decor Plate

Wonderful example of Acoma art and pottery. Acoma pueblo is between Albuquerque and Gallup on the 40 fwy. This piece is signed "by Acoma Indian Woman 1980". I would use as decor or to hang as do not know what the glaze/surface is. Condition: Vintage, some discoloration spots on front and back, one large chip pictured, the black "spots" on edges are where the top layer is chipped off to show black, not sure if this is purposeful or wear, please see all photos and let me know if you need more pics Figures are what appears to be a thunderbird, with the sun symbol under it. There are also leaves, and what appear to be rain clouds on the thunderbird's wings. I would guess this could together symbolized success with crops which is a recurring theme in native american art/pottery. Triangle shaped, 9 1/8" high 7 5/8" wide