Here are a few pictures that I found interesting.
That'll be another wigwag manufacturer!
'Type 1' Railroad Supply Autoflag (directly based off the Bryant-Zinc company wigwag)
'Model 3' Railroad Supply Autoflags
Bryant-Zinc products
Bryant-Zinc AutoFlag brandishing its classic paint scheme.
US&S DW. The article, dated 1922, said that US&S DWs were being used on 15 railroads.
US&S DW.