Рет қаралды 9,771
Read about the top 20 most valuable postcards here: mailseum.com/t...
Check out Mark talking about the hold-to-light Santa postcard he sold here: • Best Buy of the Whole ...
In this video, I talk about the top 20 most valuable postcards that you can find in antique stores, estate sales, online auction sites like eBay, postcard shows, your grandma's attic, and more.
Visit my website at www.mailseum.com/
Visit my eBay store at www.ebay.com/s...