Very cool! A bunch of years ago, I was researching water pumps for Sutter's Fort -- there had been one inside the walls in Ye Olde Dayes. A friend called me and said there was a wooden pump, complete, in the basement area of an antique shop. He also pointed out that it was summer, and the staff would be out on the front porch. If I went down in the basement area, I could see the thing, and probably take it apart enough to see how it worked.
He was right, and I did take it apart, taking dimensions and making drawings before I reassembled it and walked out whistling.
The Fort never got around to commissioning the pump, but somewhere I still have the drawings.