Thanks ellen for reply! The EB is on the right barrel close to the center where both barrels come together. The location is between the to (release mounts?) about 2" away from the 166 marking, about two and a half to three inches from the butt end of the barrels.The hammers do not rebound after fired, they rest on the strikers. There doesn't appear to be any other markings where the receivers and barrels meet other than the gold ornamental markings that you can see in the pictures.
Do you have any idea what the (No. 318) signifies on the end of the trigger guard? Any idea on a ball park figure as far as the value? Like i've said earlier, I know Very Little about firearms and may be interested in selling it in the future.
Thanks again,
Perry