Original sewn collage is designed to be used as a postcard. The backside, with its semi-transparent backing, reveals a part of its creation, while providing a surface for you to write a note. Have fun discovering the parts that come from old books, letters and my old drawings and prints. To mail the artwork/postcard it will require postage for a regular letter (55¢ - such a great deal!) Or just hang it on the wall! ENJOY!