I need the loading gate which goes in the right side of the frame (dovetailed) for a 38 double action MERWIN & HULBERT revolver. I have posted to this forum because others have had better luck posting to the S & W forum that to the rather inactive Merwin & Hulbert forum. Any ideas where to find this--Numrich Arms, Dave Chicoine, and Dixie Gun Works all do not have this part.