I know it's a vendo...

I've got my hands on a square cornered vendo that I think may be a 63 based on pictures on this site, but I'm not really sure.  It has been sitting in my office for years and was still in working order five years ago when it was uplugged and replaced by a refrigerator and the honor system.  I've attached some pics.  Any idea on when it is from and what it might be worth?

Any help would be greatly appreciated.

Here's a few more pics...

last pic...
Oh, and the side reads:  Here's the Real Thing

LOOKS MORE LIKE A VENDO 56 TO ME,I HAVE BOTH THE 56 AND THE 63.THE 56 HAS ALOT THICKER DOOR THAN THE 63