iPhone 4 16 gb black -

Apple iphone 4 16gb black, comes with box and sim tray pin and also the manuals. Phone has a small crack on the screen but doesnt affect function of the screen. i am looking for 200 ono. Pick up only. questions are welcome about this item. Phone is getting sold due to upgrade of contract. Phone was on 3 but no idea if it has to be unlocked or not.