Our Smithsonian Castle Museum Postcard is perfect to send a little love from America to your friends and family! The Smithsonian is home to the world’s largest museum with 154 million items, 19 museums, 21 libraries, nine research centers, and a zoo – all without charge.
Printed in the USA by a small family business. 
Standard size is 4" x 6". Crisp pebble-like textured finish cardstock.