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Have you ever wanted to get your hands on an iPhone that Apple engineers have used for testing? If you’ve got 5 figures to blow on a non working phone, now’s your chance because an iPhone 4 prototype has shown up on Ebay. The listing comes from a user by the name of jtmaxo, who lists the device as ‘Apple iPhone 4 black APPLE GENUINE PROTOTYPE, GENUINE’. In the description the users states the device as a GSM iPhone labeled with the model number XXXXX FCC ID: BCGAXXXXX IC ID: 579C-AXXXXX.

Just like Gizmodo’s iPhone 4 prototype, the volume buttons are missing ‘+’ and ‘-’ labels and storage information (XXGB) on the back of the device. Also, the seller says the device won’t activate through an AT&T SIM card plugged in through iTunes. Lastly, on the front of the device a ’DF1692′ label is shown, which is thought of as a tracking code used by Apple. When the seller searched the serial number on Apple.com, it returned no results. So, where did the seller get this device?