I feel your pain. Still I think that was a good price. 20 ga. with Hunter Single Trigger, looks like shorter barrels, hope they weren't cut. Does it have ejectors? I would guess yes.
Plus it looks like it is a Regular weight. I would definitly say it was a good price, no a great price if the barrels weren't cut.
Like Dr. Bill said, maybe an oil issue, but that can be fixed.
From looking at the pictures, in Brophy's book it states that the #2 had ducks and quial in a circle on the lockplates. This could be a #1.