The Last Interurban: Unfortunately tied down for the weekend, IATR 50 basks in afternoon light. This BLW-Westinghouse product is 101 years old this month, and is still earning its keep in revenue freight service. She was built in 1920 for the Washington & Old Dominion, and then bounced around several Midwest interurbans before landing at Iowa Traction's predecessor, Iowa Terminal, in 1963.