Newly acquired 1937 Canadian porcelain sign

Just came back from my yearly cross country trip picking up signs and antiques. This one came from just north of New Orleans. It should clean up well. Boy, is this heavy! It measures 4' x 8' and is very straight. The last photo I just added- all cleaned up and all touch up paint on rust areas removed. I think it looks much better with the original patina. Anybody see these very often?...