Looking at the pump and bucket. What is the vertical line above the bucket. I know most of the older ones know what it is, but the younger ones may not know? That line pictured the handle to carry the bucket with. The pump had a notch on the pump to keep this from falling off while you were pumping. This kept the bucket from accidentally tipping over and you would have to start again:

On this pump instead of a notch there was a raised area to keep the handle from falling off the pump. Just wonder if anyone did not know this. (Or are all of us, as old as dirt?)