Here is the first one, first issued in 1957, the #38A Karrier Refuse Truck.
The next version came along in 1963, the #15C Dennis Refuse Truck. Shown are both variations, the one on the left has a peep hole while the one one the right does not.
Finally, from 1966 is the #7C Ford Refuse Truck. Also shown is his big brother, the K-7 in the king size range.