Vintage Crystal Ball Mechanical Hanging Clock, heavy magnifying 2 sided crystal, 1 side gives time the other side a close-up of the gears at work, bronze encircled. English marked, "?? Son, Piccadilly Circus." Swiss movement, hangs on a nickel plated brass quarter moon watch stand, with stand 7" tall x 6" wide, ball is 2 5/8" diameter. Provenance: A Hollis, NH collection. Estimate $400-700
