I believe it is, this looks like a wheel well.

A clue??
"It was the first xxxxx xxxxx to make extensive use of stainless steel and smooth, flush-riveted butt-jointed aluminum skin panels"

The pic didn't ring any bells but your clue did...
It's the P-38 Lighning isn't it?

Well done it is the P-38.
Photo from here -- http://www.cybermodeler.com/aircraft/p-38/p-38_walk.shtml
And the prize.

This weeks headache.

Have fun

First clue
Served as a patrol aircraft in WW II ?

Looks like a Twin Beech to me.

Not a Beech, much bigger ??
"This first aircraft had an unglazed nose, whereas later production aircraft were to have a glazed nose housing the bombardier's position plus a flexible 0.30-inch machine gun carried on a ball-and-socket mount. "

Looks like a Lockheed Hudson to me?

Bigger Jim ????
"First flew on July 27, 1939"