Painted ceramic earrings gold accents abstract pierced ears vintage jewelry ll1937

Very attractive earrings for pierced ears made of rectangular disks of china painted with an abstract design of shades of blue with gold accents. They have a distinctly nautical look due to the blues and the gold lines that are reminiscent of the masts on sailboats. The earrings have post and butterfly backs and measure 7/8 by 1 1/8 inch. They are in perfect condition. Age unknown.