Dug this in my yard... house dates from mid 1920's... (penny is for scale only.)
Need to learn how to dig less trash, but thought this was interesting.
Remnants of screen across one side... filter of some kind maybe?
Awesome... thanks guys, I think that's it. House is near a reservoir... Previous owner had a boat for sure... I found and OLD pair of oars up in the garage loft when I bought the place.