These were hooked into long circular chains that for lifting water from one level to a higher one. As each cup dipped into the water it filled and lifted its contents up to the top, as it went over the top pulley it spilled its contents onto the higher elevation.
Marked E Z.
Total length is 42 inches.
Thank you for shopping at Pig's Poke Collectibles.
After a lifetime in CA, we now live in beautiful St George, UT. Enjoying the retired lifestyle. Still hunting for those hidden treasures though. Selling slightly less vintage items on Etsy too at pigspokecollectibles.