The American LaFrance decorations evolved as the truck bodies changed. All the different scrolls painted over the years are made up of the same few leaf forms. This style can generally be called Renaissance scroll-work.
The gold leaf scrolls have painted shadows added to make them look 3-dimentional. Fine lines and dots of white and black are added to enhance the carved appearance. Sometimes small accents of green give an extra accent to a design.
The Yat Ming Company made a model of this restored engine. The big one was built in 1939 for Freeport, Maine.