4X6 Train Postcard USING THE PHOTO MAGNIFIER, Please Examine Photos carefully, both front and back, for flaws. The back will sometimes reveal nicks or bends that you cannot see from the front. Double-Click the Image for Super Size Photo. Any long straight black or white lines that extend vertically over the postcard were caused by pieces of dirt/dust on the scanner plate and are not on the card itself. Your order is important to us. We generally ship within 24-48 hours, Sundays and Postal Holidays excepted.