That is great information Jack. Very interesting that they advertise the 6 strokes to fill the 5 gallon bowl. The crank on mine is actually free and moves around 360 degrees. Makes a heck of a squeaky racket but I'm working on that. The Birmingham is the only one of my visible pumps that the "hand crank" is not locked up. I would really like to buy one of the original ads for the Birmingham pump if you or anyone else has one for sale. Even a reproduction one would be nice. Thanks again! Tony