Help with identification on 2 Rollfast bikes please ? Special De Luxe & ??

I just grabbed these two Rollfast bikes and I am in need of some help trying to figure out the year on the Special De Luxe and the model and year on the girls banana bike. I have some #'s off of each of them but not sure how to decipher them if that's even possible. Thanks in advance

I used to own the twin to that bike. As far as my research took me, I was told it was a 1954 Rollfast Royal Special #50 (I know...weird name). Mine was identical to yours except mine did not have that headlight. However, my current Rollfast, my 1953 Royal Flyer, has that exact headlight. Yours obviously has a Schwinn saddle on it also.

Here's my old bike:



And here's my current Rollfast with the matching headlight. This is an old pic, the seat has been swapped out for the correct one.

Yeah, the styling is very 1954-55 late ballooner. It should still have the distinct, reverse year serial number under the BB to determine the year SE-35 for 1953.

Thanks Greg, That is pretty close only a couple slight differences. The seat on mine is a Mesinger though , No S or Schwinn symbol on it.

I don't see anything on the BB , There is E285138 on the dropout though.