ClapperZapper, I haven't had time to look the 20 BORE up yet.I am wondering if it is an Alex Henry my brother owned and sold to Frank Findlow who wrote articles in Double Gun Journal, one of which was a 20 BORE double rifle.The Alexander Henry 20 BORE was one of 4 double rifles made for the Maharaja of Pattiala at the same time. There were two 20 BORE double rifles and two .577 double rifles. I owned one of the .577 double rifles and my brother the 20 BORE. I will look the article up after I get back from vacation. Thanks!