Here's the other side. Cancelled Chicago October 2, 1933 and short paid to Canada. Interestingly - and quite strangely - the Post office affixed the postage dues right over the address. But it looks like ti may well have been what we used to call "General Delivery" - that is mail picked up at the Post Office.
For those interested in those buses, the card says ".........vistitors are transported by a fleet of sixty semi-trailer type open buses, which accommodate 15,000 to 20,000 passengers per hour."
One wonders why this bus model didn't become more popular and widespread.
