J.R. Hegeman Jr. was a businessman and avid Colt collector who commissioned dozens of custom engraved works of art turn-of-the century to early 1920's. Decades ago his entire Colt collection was sold, in today's market easily worth over $10M. The example below is one of his many specially commissioned SAA's, a pair of Helfricht engraved Colt's with Bisley triggerguard. The Helfricht pattern as seen on these was the inspiration for an engraved SAA of mine. Wish I had more information to share.