Actually, now that I ponder it a bit, there is another gun with an exposed hammer on the property. It is a Winchester (Cooey) 840 single shot 12 given to my brother for Christmas in the year 1976.
My brother despised this gun, and gave it to me, in a broken state. I repaired it, and cleaned it up a bit, and, have yet to fire it either.

Not much of a spokesman for hammers on guns, I guess.

Best,
Ted