The picture shows a front and back view of this Old Numbered Metal Advertising Key Chain Tag. The year that it was made is unknown but it is old. The tag appears to be made of copper. It has a stamped number. One side is blank and the other side is marked as follows:
521 NOEL - SART. CULPART
The tag measures about 1-9/16'' wide. It is in very good condition as pictured.