I have a question about one of these I found TODAY on my way home from picking up that model 1905 I asked about earlier. Is in better shape than what the OP posted, but does not have the factory grips. It has these HUGE grips with not finger grooves, but an actual piece of wood that the index finger rests on, I have seen them before but do not know what they are called.

At any rate, what would something like this be worth? It was also a 6". I dont have the serial # because the grips covered it.