Lots of early versions of other castmate characterizations. Henry Hawk, Pepe le Pew, Bugs Bunny and Porky Pig can all be glimpsed or heard here.
Adult oriented humor is apparent here, with the nod to safety razor blades (plentiful once more after the shortages of WW2) and the silent swearing of the beaver crew. The word hinted at, damn, was considered a very strong curse word at the time.