Bob is basically correct. That is a 1974 70-series, though it was produced into 1975 I believe. It was replaced with a 1975 version that did not offer a second rinse. I somewhat doubt that this washer was produced toward 1976, but you never know. With that "upper balcony" of controls, I never thought it was very attractive. The 1975 version had the level, temp, and soak selector switches brought down to timer level and had the brushed aluminum top, which I've always thought were so cool.
Neat machine though - gold Penta-Swirl, skinny quiet-pak belt, and all the features you'd ever need including solenoid activated bleach, softener, and detergent dispensers.
You gonna get it Mark?
Gordon