DP Harris girls rollfast year?

[flyingtaco]

I've had this one a couple years but have no clue what year it is. I am starting to disassemble and clean it up. Stared with the headlight which cleaned up pretty nicely.

ANY help narrowing down the year would appreciated.

 

[Adamtinkerer]

E serial = 1963.

 

[flyingtaco]

Thanks Adam