(Museum of Transportation) in St. Louis, MO. Dougherty Ferry Rd. W. 1.0 miles from jct with I270 exit 8, S. on Barrett Station Rd. 0.4 miles, W. into parking lot. Walk S. about 250 yds to the cake. (N38 34.292 W90 27.804) Photos by Jack & June Schmidt 4-11-14.