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How to address a postcard
Look for signs of where to put an address.
The address is normally placed on the right hand side of a postcard and midway down the card. There is usually a printed vertical line denoting the left and the right of the postcard.
If not, imagine a line in the centre of the postcard, choose the right hand side to insert the address. Many postcards include pre-printed horizontal address lines to show you where to add the address.