Lenox used electric motors, air compressors, electromagnets and conveyor tables to advantage to accomplish the manufacture of Belleek white-ware. Several types of clay and flint were the primary ingredients of the white-ware bodies, not bone china. American, or Lenox, Belleek, a successful imitation that developed its own warm and restrained perfection, was initiated by Walter Scott Lenox in about 1889 at the Ceramic Art Company and has been made by Lenox, Inc. This is a RARE antique and part of an elegant era! These cups are in PERFECT CONDITION!
The picture show wearing to the silver, but it's just tarnish and flash of light... Just needs a good polish.