I need to find the remaining proof marks on my Merkel Model 210E combo gun. Need to look under the forearm wood slats that are not designed to be removed, attached via 3 screws on each side. The screws are ornate, and their grooves are very shallow. I have gingerly tried to remove a couple of them with no luck. Afraid of scarring them with a screwdriver. Anybody have any suggestions for dealing with these old screws to get them unscrewed? The gun dates to 3/1929. See photos below. Thanks in advance for any assistance some of you more experienced double gunners can offer.
TexasJack
