Rock Island E6A 630
My boss found out I build trains and he asked me to build him "that Rock Island I remember as a kid." I said, "the red/silver one or the red/yellow one?" Naturally the silver one. I told him silver would be expensive and he said the silver one. So here it is, lots of metallic silver. I'm glad someone else paid for this one!
Rock Island's E6A #630 was the last E6A operating in the US. It seems it was forgotten about in commuter service around Chicago and just kept operating until 1980. 44 studs, unpowered and very heavy.