Image: Rosy Cross symbol
Version of Rosy Cross symbol -- the Hebrew Tetragrammaton divine name on the arms of the cross, and the Pentagrammaton in the inner pentagram. Illustration from 19th-century occultistic/mystical work. Apparently the emblem of the 19th-century "Ordre Kabbalistique de la Rose-Croix" society, founded in 1888 in Paris by Joséphin Péladan (died 1918) and Stanislas de Guaita (died 1897).
credit: Wikimedia Commons