Yes, I well remember the Gale tanks. What I don’t remember is a 4 gallon one, but not saying they don’t exist. However, the 6 gallon tank first appeared on the 1955 22hp which was a small-bore J/E 25hp. In 1956, the 12hp Deluxe models also got the pump & tank, while it could be added to the 5hp as an accessory. If there was a 4 gallon tank, that probably was where it was.
