What is the origin of the term nice rack?

The term originated in Michigan's Upper Peninsula where deer hunting is an annual passion. The ultimate compliment of someone's deer is to say that it has a nice rack meaning that it had a nice set of antlers. In 1972 a group of friends were admiring a well-endowed young lady at a local park and one of them mentioned that she had a "nice rack". They all agreed, laughed and headed to the bar. A year later they graduated high school and spread to various colleges using the term openly. About 3-5 years later the term "nice rack" was common vernacular nationwide.