I remember that bar with the muskets! It is right outside a piano bar on Bourbon Street, next to the Preservation Hall Music Club. It was a collection of about 2 dozen old weapons. The majority of them were civilian shotgun types if I remember correctly, and trapdoor Springfields. There were only a few civil war era muskets, and a few more modern ones. I think I remember a sporterized Arisaka. Of course, I was fully enjoying Bourbon Street at the time so I might be off on a few details. The weapons were in very bad condition as one would expect being in a humid New Orleans bar.
Old Northwest Volunteers
103d Co, 94th Engineer Battalion