Pin Ups en pointe

It's kind of weird how many vintage pin up pictures show women en pointe.  I guess once you have dressed up as a "sexy pilgrim" any chance of the image making sense has pretty much gone out the window.  So... armed pilgrim turkey ballet. Why not?

I can only assume that:

1) Quite a few of the nice looking pin up models had ballet training, and

2) Once 5-8 inch heels are a common prop that only really leaves one more place to go.