in an among the Mk1-3 reduced view of the fat fonts 1959-1967 ish. I would not bet the house on it as we know Rolex can always throw a curve ball. However as noted based on the various examples as seen on the watch and my direct visual confirmation of a 1963 5513 gilt with the slim 4 fat font I have some confidence. Your NOS example is a killer example of the insert in all its beauty.
Best
Bill