A half mourning button, painted with a trompe l'oeil bobbin lace roundel on a black ground--1.25in. (3cm.), 19th century, probably English; another button of mother of pearl and reverse painted glass with a grid effect--0.75in. (2cm.), mid 19th century, English or Continental; and a mirror button, painted in black with a flower--0.75in. (2cm.) (3)