This "Slow" cast iron sign was made by Arcade during the years 1938-41. This sign is orange with gray/white lettering. It is 2-1/4" tall x 1-1/2" wide x 5/8" deep. It says "Slow" and is blank on the other side. It has a 2 foot base. Many of these signs from this time period were part of sets such as #4329 Road Construction Set.
This sign was played with. It has some paint chips. Please see the pictures.