Traditional sign-painters alphabet. These digital fonts will get you close:

http://www.letterheadfonts.com/fonts/fullblock.php
http://www.myfonts.com/fonts/jnlevine/moving-van/
http://www.myfonts.com/fonts/jnlevine/charlies-bar-bq/
http://www.myfonts.com/fonts/canadatype/player/
http://www.myfonts.com/fonts/jnlevine/stadium/

Keep checking back—I'm sure others will have even better suggestions.

Another one, National Champion

Thank you Don and kthomps5! Looks like Player from MyFonts is very close.