As the lower, center corner of both front windscreens is visible in
this picture, and the skin joint (including a but strap) is missing for the first position, I assume the second one: port aft.
The only thing that is confusing, is that this window frame lies at the cockpit impact side, on the starbord side, while the other panel clearly very close to the explosion was far away. This frame would have broken away at a very early stage of the breakup, so why is it found with the lower forward fuselage section, when it clearly is not connected to the other debris? Something is fishy here... As well as the fact that the most important piece of debris is found leaning at a telegraph pole, positioned to be found. I can imagine somebody took it as a souvenir, and later gave it away when he realized what it could mean?