Two purported images of Nokia’s (NOK) upcoming Windows Phone 8 handsets appeared on Twitter on Friday morning courtesy of evleaks. The first image features Nokia’s new flagship smartphone, the Lumia 920, which is said to include a PureView camera and a 4.5-inch display. A Nokia executive confirmed to BGR at this year’s Consumer Electronics Show that the company was working a smartphone with the exact same footprint as the Lumia 900, but with a larger 4.5-inch display. The smartphone has also been rumored to include a dual-core processor, expandable storage, NFC and 4G LTE connectivity. The second image appears to be the Lumia 820, which is equipped with a 4.3-inch display and Carl Zeiss camera lens, although not much else is known at this time. Nokia is scheduled to hold a press event with Microsoft (MSFT) in New York on September 5th. A second image follows below.