3/15/2012... MYSTERY SOLVED!
Ben Truwe, a tiger on the historic hunt, figured out this sign advertised Rheinlander Beer and the internet supplied a copy of a pretty similar looking graphic. Here is a mock up of what the repainted sign would look like. Unfortunately the property owner, for reasons unknown, now appears to have changed his mind and wants to just paint the wall. No matter....we'll get another chance to restore the sign in 15-20 years. They don't call 'em "Ghost Signs" for nothing...they keep reappearing.