I have two "Original Etchings" by Pierre with a triangle stating so, with the letters "SLL" at the bottom of the label on back. The label states they are genuine French Etchings imported from France and are hand made - no machanical process is used. One is "The Verzee River, France and the other is "The Naire River at Premery, France." The Pierre signatures are on an angle and both Etchings are in oval frames. Anyone know anything? Value? Real? Thank you. Rickie