This picture is from a post card showing the boat used to spread the "Good News" on the Erie Canal outside City Hall in Syracuse.  It appears to be in the early 1900's. 

Though it is difficult to read all of the text on the boat, along the waterline is John 3:16... and near the back it says "One thing you may be sure of  -  Be sure your sin will find you out"

The Gospel on the Erie Canal