Sand or Gravel Mix Calculator

If you need to lay down some concrete, this is the wheel for you. The copyright date on this is 1965, but the design looks twenty years older than that. It's shaped like a bag of concrete mix, which lends a certain charm to it.

This measures, roughly, five by eight. It's in pretty good shape. But there's not much to it. Cement-pouring guys don't have time for frivolities. Just add water and use.