Jeffersonian Door

A friend tells me that Jefferson had them at Monticello. Other rumors I've heard include that in early St. Louis, taxes were based on how many doors your house had (I assume outside doors?), and so this was a window. That was also a door. I don't know exactly what the truth is on either story, either its name or the reason. But they are very cool. And I love mine.

Here it is, closed.
Open just enough for air flow at the bottom.

Kids and cats have easy egress.

I can walk through, just ducking my head under. Sleeping porch lies beyond the window/door.

Counter-weighted on chain just like the other original windows.

This is a bit confusing. You are looking up between the upper window and the wall. The bottom window/door part will slide up and into this space.

Like so.