Mary L. Martin Postcards Blog

The official blog of Mary L. Martin Ltd., one of the largest and longest-running postcard dealers in the world. Based in Havre de Grace, Maryland, the Martin family has been in the postcard business for over 50 years across three generations.

Their blog covers postcard show announcements, auction previews, collecting advice, and industry news. A valuable resource for staying current on upcoming events, especially their shows in York, Pennsylvania and the DC area.