The line shaft pulleys and belts have arrived, and they are as good, if not better than their photos.
Definitely showing their near 100 years of age (which is fine, in fact desired), they are a fine example of an age just passed.
I will definitely talk more about these when they are being set up as a display in the new shed, but just to mention, I was really intrigued by the 3 different leather belts. One was thin strips of leather stitched together. One was a single long length of leather (sure there are some joints in there, otherwise it would have been a world-record cow!) which is two wide pieces stitched together. The last are short strips, with metal joiners ever couple of feet. Sort of like a modern link V belt, you can increase or decrease the belt length by adding or removing segments.
Two of the belts are really cracked (the solid leather ones), but still pliable (just). The third is very still indeed, so I will have to find out how to soften the leather enough to be able to properly install it around a couple of the pulleys.
Edit: I still have the plans for a small water wheel. Be cool to scale the plans up a bit, and have this on the outside of the shed, perhaps even with a water pump providing a stream to turn it.