I have a 4 piece vegetable serving dish (lid, vegetable holder, juice holder & bottom) There are 4 markings: R & B (I believe this means Rousseaux & Boulogne 1903-1910. The second is an ornate S, cannot make out the 3rd and the 4th is a Fluer de-Lis-French. I am looking for any information and range of value.