Extra Screw Parker
 

Looking at this Parker for sale. Does anyone have a clue what that extra screw in the frame is?

My guess is that the hammers can't be cocked if that screw (and presuming there is also one on the right side) protrudes beyond the inside wall of the frame. The frame is only about 1/8" thick in that spot.
It is probably an early 'Massachusetts compliant' gun and that "hammer stop screw" is the predecessor to the trigger lock which is now mandatory in MA.

Very interesting. There is another screw on the reverse as you have guessed.

That is interesting as to what that is all about. If each screw does go through into the frame cavity, then the hammers operation would be interfered with as Dean suggests. And if they do not, then I can image the purpose of them. Not that I an think of one either way. Would be interesting to get into that Gun and see what is going on.

Almost appears to have been restocked in Europe or at least with a bit of European style. I wonder if its not a screw at all, rather somebody fit some type of cocking indicators to the frame?

Now there is a possibility I hadn't thought of, but they are in about the same location as the indicators on a Sauer box lock

That would be easy to check, release the sears and note the position of them - then open the gun and see if they move.

Is there anyway you could post a close up of just the receiver, so we could get a better look at it?

Eldon, are they cocking indicators as a poster suggested?

I can not get any other pictures. I have spoken to the seller and got him to determine it is a 2 frame and that the barrels were 30'' uncut. I would have liked to solve this mystery but the price of 1800 was just to steep for a 2 frame VH 12 gauge for me.

I think this is as good as it is going to get. Unless I ask the seller for another one but I think I already pushed my luck getting him to answer all my questions without making any kind of offer.