How do you know if you have an antique post card or greeting card? My granmother- in – Law Just passed away and she seemed to share the same passion of collection postcards and greeting cards as I do! She was VERY BIG on collecting antiques as well and some of these cards and post cards look REALLY OLD! I dont want to mail something that could be worth a whole lot more than 42 cents.

Tags: collecting antiques, granmother, greeting card, greeting cards, mail, passion, post cards, postcards, whole lot