It didn't seem that the owner had much confidence in that 3-wheeler's reliability, when he had that tow fixture mounted onto the fork
That looks more like an ordinary service garage advertising the brands they serviced. There's that Harley with they tow hitch fork again
https://en.wikipedia.org/wiki/Harley-Davidson_Servi-Car http://www.nationalmcmuseum.org/1939-indian-dispatch-tow/ https://www.bike-urious.com/1935-indian-dispatch-tow/