I spy with my little eye...
... a rare Lustron home with the original enameled steel siding AND roof! These prefab houses were developed in the post-World War II era in response to the shortage of homes for returning GIs. There were only 3k constructed nationwide between 1948-50. St. Louis has only of the healthiest remaining inventories in the country! Fun find today.
Here is an interesting piece if interested in learning more about the history of Lustrons...
