Speaking about the first mask with a nose, one thinks about the famous Pinocchio mask by Cressi Sub presented in 1952, revolutionary because of its nose housing obtained inside the rubber structure.
This allowed an easy compensation maneuver and a glass positioning very close to the eyes to increase the visual field and remove the tunnel effect.
Yet masks with noses already existed for several years but only capable of guaranteeing the second advantage ensured by Pinocchio.
The "nose" was in fact obtained within glass (plexiglass in reality); its function was only to bring glass closer to the eyes; however, being plexiglass rigid, it did not allow to pinch the nose with fingers, making compensation difficult, given that it did not even allow the use of a nose clip.
You can see it in the image sent by Kevin Smith which shows the lid of the box of the mask produced by the American company Desco, also presented in the company's 1949 catalogue. Even clearer is the design of Surf Star mask, subsequently produced by the English Typhoon.