Fulton Arms in line information wanted.

[longcaribiner]

I just picked up a rather bizarre design, but seemingly well made in line pistol.  The seller said it was made in Michigan  by Fulton Arms.   There are no marks on it.  50 Caliber barrel  with a drum hanging down under the barrel.  The nipple points toward the muzzle.  There is a sliding spring loaded plunger between the barrel and the trigger which is cocked by pushing it forward.  Upon firing, the plunger rams back against the nipple.   The stock appears to be walnut.   There are no sights or dovetails for sights.  Just grooves milled along the top flat for attaching a scope or red dot.  The clean out screw at the end of the drum is also the screw which holds the barrel to the stock.   

I have seen some strange contraptions but this one takes the cake.  I'll post some pictures this evening.

[wiley]

I have a couple of rifles with this setup, a 45 and a 54, in a bullpup configuration
Wolverine was the brand name at the time.
Real compact and useful in a small blind.