pair of all original american antique mission or craftsman style electric light fixture shades fabricated by or for r. williamson & co., chicago, il. the pyramidal-shaped glass shades contain a frosted finish accentuated with clear glass edges. the shades were salvaged from an badly damaged early electric two-light ceiling fixture fabricated by r. williamson. the pressed glass shades in in good condition, considering age. priced for the pair. each measures 4 1/2 x 4 1/2 x 5 inches.