Log Cabin Shop used to sell the Houston Harrison drawing of the famous Dickert with the side opening daisy patchbox, that is in RCA 1. The rifle was reportedly carried and used in 1782 on Crawford's ill-fated Sandusky campaign against the Wyandots in north-central Ohio. Just a fantastic longrifle.
You probably already know this, but there are several other Dickert and Haines rifles shown in RCA 1. I think Mel Hankla had (maybe still has) a Haines fowler on the American Historic Services website, about a year or so back.
Guy