Finding old Hand Ejector Grips

I posted this on the wanted channel but thought there are so many experienced posters here, I'd repeat it. I have a 3rd Model 44 Spl. Hand Ejector made in 1928 but it has incorrect grips. This gun was made at the time S&W was using the grip without medallions. Where would a person go to look for these? I would settle for a large medallion pair until the correct grips can be found (if they can be found). Thanks, Ed