1955. High quality version.One of the very last episodes, along with Dragon Around(1954) and Chips Ahoy(1956), with which ended the Disney shorts unit.In these episodes, both Chip and Dale feature larger eyes and generally look more baby-like, especially Dale. IMO, their reference drawing is in Chicken in the Rough and Two Chips and a Miss.On a more positive note, no old samples were re-used to do the chipmunks voices in these episodes, and they are much easier to understand than before.