Lucky #13 pendant

Pre owned in very good condition. Good Luck Symbols Horseshoe Four Leaf Clover Plant Elephant Animal Owl Bird Totem Charm do believe it is 925 because it does tarnish and clean back up to silver when using a polishing cloth but it is not marked anywhere that I can see. I could be wrong. So I am selling this as a price for if it was just fashion jewelry. Lucky13 vintage pendent Approximate Pendant Dimensions: 1.5'' x 0.5'' (38mm x 13mm)