Vintage Cufflinks

Gold tone Signed with patent pending. Couldn’t tell if they were signed anywhere else. Need to be cleaned. I haven’t even wiped them off. May or may not look different once they are cleaned. They do have wear due to age. Some that looks like wear, I think can be different once cleaned. I’m not sure of the brand, age, or metal. Please see photos as they are part of the description. Ships as soon as payment is received. ALL flaws or imperfections are shown in photos. All offers welcome! Thanks for looking!