this looks old and American...

something from the 1950s perhaps? both pictures sent in by Detroit Dave

this one was for sale on eBay, sold for $102.50 - did someone get one hell of a bargain?
The description said: 'unknown british or european motorcycle for parts or restore. on each side of the motor it has a mustang horse on top of the gas tank it has what looks like a compartment.'

Some kind of (replica?) military bike - engine looks like an old Guzzi but the rest more like a 45.
Solved: this one's an Indian 841 45 ci military prototype made during WW2. Thanks to everybody who wrote in!

this has now been narrowed down to either a BSA or Matchless single. But which???

Picture taken in Daytona 1990 or so. Viewer feedback suggests it's a Cushman chassis with Briggs & Stratton lawnmower motor & Honda moped frontend...