Mark is correct, there were two different series regarding Troiani paintings, the first were done through Conte, the second series were direct from Troiani.
I bought a large Conte collection at the big OTSN show and several Troiani sets are among the ones I came into, High Water Mark, Lions of Little Round Top and First at Manassas among them, they are really nice sets, will have them for sale at Hackensack and via my website..........