P.S.: Capacity
The 13-foot capacity might seem small by today's standards, but it was perfectly adequate at the time; our family of five did quite well on it.
The reason? Today's mammoth package sizes were nearly unknown at the time. It was possible to get a gallon jug of milk, but quarts and half-gallons were the norm. Pop came in single-serving bottles, not huge honking 2-liter sizes. Gallon ice cream containers? I never saw one then. Containers of cottage cheese, sour cream and the like came in what we today think of as "small" sizes. Frozen vegetables were in little waxed-paper-wrapped boxes, not huge polyethylene bags. You didn't have large boxes of family-sized frozen entrees, and frozen pizzas were a sometime treat, not an everyday staple. Fruit juice came in little cans of frozen concentrate for the most part, not enormous jugs.
You just didn't need as much storage. We also used a lot more canned stuff then, which doesn't need refrigeration, of course.