This is an old European Pendant marked 583 which is European for 14KT Gold. The hallmark is a Star with a small star inside the larger one - 583 VI 75. I am still researching this mark. The Pendant is designed like a picture frame with a tiny nailshead at each corner - the recessed center has the initials A P. It measures 3/4"Long x 11/16"Wide. The Bail measures 1/8"W x 3/8"L. The Bail has a good opening for a chain or wire. In very good condition with only minor wear. ENJOY!