Acrylic Tinted Thermopane Euro Windows Lance 1575

If those windows are like the ones I saw in Italy where the screen pulls up from the bottom, the shade pulls down from the top, and they are a bulged out plastic that hinges at the top for ventilation they seemed to impress me at the time. I later saw one TC using them in the states.
don't recall exactly how they are held open however. I too would consider that to be operator error.
bumpy