I have an "Immortals of Art Rembrandt van Rijn" by Salvador Dali. It has a label on the back that says "The Societe de Verification de la Nouvell Gravure Internationale of New and Paris certifies and warrants that this is an original etching signed in the plast by Salvador Dali." It is numbered 103 D. Is there a way to verify that this is in fact a numbered Salvador Dali etching?