This is the only pic I have left, that shows the patchbox on my Numrich Arms H&A .36 Heritage.
Mine has a somewhat coarse polished steel look, almost chromed or nickle-plated, so I dunno if they were originally brass-plated or not.
IIRC, Numrich made 6 different H&A underhammers - the Boot Pistol, the Offhand Rifle, the Deerstalker rifle, the Deluxe Buggy Rifle, the Heritage Rifle, and the .45 Target Rifle.
ALL the rifles had globe-style front sights, and rimfire rifle style longleaf iron rear barrel sights installed.
The Heritage had a patchbox, a 3rd sight (a tang peep), and a looped skeleton-type pistol grip to the rear of the mainspring - the only model to have those features.
The .45 Target had no patchbox, forend, or ramrod/thimbles
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