TC Blackpowder sights
 

2 - #7194 Hunting Style Tang Peep Sights. Fits Hawken, Renegade, Big Boar, Wht. Mtn Carbine & PA Hunter. I think, but not positive that they'll also fit Lyman Trade rifle.
Both are brand new, never been mounted. $30 each, shipped to lower 48.

Also:
1 - TC #7210 Globe Front Sight. Fits TC Hawken, Renegade & PA Hunter. Perfect mate to the Vernier Tang Sight #7190.
$18.00 shipped to lower 48.