Unprocessed postcards In my time at CMU I have seen thousands of postcards, maybe 10 thousand. Postcards were a cheap, pretty, popular way to correspond with friends and family before cell phones, showing where you lived or had visited, as a keepsake of your trip, and were a boost to tourism. Your friends saw the postcard and thought, we should visit there! Most postcards were and are 3.5x5.5 inches, traditional postcard size, but larger sizes were and still are created. Some of the postcards were mailed and have writing and stamps on the back. Originally, postcards were black and white as they were created from black and white film, then some images were hand tinted, which proved popular. Later, they were created from color film. Some of the images were and still are reproduced on kitchen tablecloths, hand towels, and other items. Most early postcards included images of major government buildings, businesses, streets and parks, monuments, and other stationery objects. Later you s...