Agitator 187-a
It's interesting, there seems to be two type of agitators, 1.) They type that merely "Drags" the clothes back and forth, and 2.) The type that creates a current and "Tumbles" the clothes. The agitator vane design with the larger portion at the top in the Wardway is one such example that drags the clothes. I like the design of the 187-a that is pictured in the lower left, that would kick up a strong current, and I like the square base.