That’s probable, but your bike has the rear Webb cantilever type brake on it, so I’m leaning towards it being a 1939 model.
The Schwinn built scripted caliper brakes became the brake of choice in 1940.
But, it’s always possible that the Webb brakes were being used up into 1940 by customers choice or until the supply ran out.
All of the Paramounts and Superiors, were special order bikes, that could be specified by the individual customer or as a factory standard model as specified by Arnold, Schwinn & Co.
My guess is, that most shops just ordered what Schwinn was recommending at the time.
But, the custom order concept was probably pretty novel at the time, and would’ve been enticing for anyone stepping up to buy a hand built bike from the Paramount/Superior line.