Huffy didn't use decals for head badges on all their bikes in 1963. 1963 was just when the transition began and I read once on the Musclebikeforums that the experimental Penguin was the first to get it followed by various other Huffys. My '63 Impala is once such bike. Non-tank models had regular head badges on and off for a few years afterwards. I have a '66 Fury in the crush pile that had a head badge (the Fury was never equipped with a tank).
This bike is a 1963 model. The chain guard is a vintage aftermarket part and not the original. It was likely a Galaxy as that was Western Auto's cheap, no frills, A-to-B transportation, no options what-so-ever, base model bicycle.