I recently acquired a 1917 that has been modified somewhat but the work is impeccable. my question is, it has pearl grips and the right side is engraved with some silver work around the right grip, the left grip is smooth and unaltered. after researching on the internet, I located a fellow in Houston who told me this was a popular modification back in the 20s and 30s and he has seen several done this way but can find no one to give him any reasoning for this. this old gun locks up great, is butter smooth action wise, nickeled a long time ago but well done, barrel shortened to 4 inches, balanced perfectly for me and will have a great home in my motorhome. can anyone shed some more light on the grip question? thanks in advance.