Interesting how the shape changed over the years. Honestly, the flat-style bar looks more enjoyable than what came later.
Yeah that seems very possible. I did an image search for pictures of the actual bars from the 50s. This wrapper style shows up in ads, but only in ads. Images of vintage bars show a different style completely. That isn't conclusive by any means, since absence of evidence is not evidence of absence, but it tilts the credence somewhat.