Rare 1950s NY Yankees hotsell button

If you are a Yankees fan or rare button collector, you won't find many of these. Upon further research, what makes it rare is that the bat is outside of the top hat. This was before the standardized logo of hat in the bat. Also, the bat is blue. It's just under 3.5" across. Very very slight yellowing on the bottom which you can almost tell in the picture but I hotsell wanted to show for full disclosure. But, it's 70 years old so not so bad!