07-16-2015, 05:58 PM
It fits that time frame. I remember seeing similar ready mix structures during my High Shool years from 1979 (yes, I'm that old). 
Mike Kieran
Port Able Lines
" If the world were perfect, it wouldn't be " - Yogi Berra.
Port Able Lines
" If the world were perfect, it wouldn't be " - Yogi Berra.