Rare Model 501 Electric football?

[nefgm.org]

I recently got an inquiry regarding a model 501 Tudor Electric Football game. I had never heard of or know of the existence of a model 501 before this. The only thing we could figure out was that this game contained red and white plastic figures rather than the standard yellow and white figures. the rule book had copyright dates of 1965 / 1966. Can anyone else shed some light on this? 

 

[Chris Harris]

This was the Game that introduced me to EF.

I had this this board until my last move and a lot of my stuff was lost never to be found again.

Me and my father played for hours on a board just like this, stands and all.

I was only 4 or 5 and was only allowed to pick who carried the ball...but this really brought back memories.