'Historic' window

The algae on the glass is probably 'historic' too. It's quite likely been there long enough to qualify.
The substantial shadow in the middle is a mature tree fern - planted (or more likely just allowed to grow) in quite the wrong spot, since there's only about 2' (60 cm) between the window and the fence.

This is Mr D's laundry - a little fibro shed out the back. It has a lot of character. (You ain't seen nothin' yet - watch this space...)