Ran across this the other day in a contractors lot in Villa Ridge MO near the intersection of Hwy AT and Saint Mary's Rd.
Austin Allard posted photos of this on the St. Louis Railfans and Modelers Facebook page. The pictures show it being moved to the Iron Spike Model Train Museum in Washington, MO. Comments to the posting say it is on loan to the group and they plan to restore it to use as a repair shop for their trains. They plan to run a G-scale train around it.