Two William Rank Still Life Theorem Paintings. (William Rank, Pennsylvania, 1921-2000). A theorem on velvet painting depicting a basket of fruit with a watermelon, signed lower right Wm Rank. Sight: 10” x 12”. In its original green mottled frame, 13-1/2” x 15-1/2” overall. Circa 1980. A theorem on velvet painting depicting a bowl of fruit with a bird, signed lower right Bill Rank. Sight: 10” x 12”. In its original red mottled frame, 13-1/4” x 15-1/4” overall. Circa 1980. Condition: Very good.