Thanks for this one as well, did a lot of searching for how the adds looked in the 50's/60's - ups then / than, writing - never been my strongest. clad you didn't see the other comma under the dogs tale.
No worries, typos shouldn't eliminate your design from the running! Lots of talented artists/geniuses aren't necessarily the best spellers - it's like a different skill set. I think it's awesome that you took the time to study retro ads in order to produce an authentic design - I say, mission accomplished!