Manufactured by Nathaniel (1804-1885) or Nathaniel Gilbert Whitmore (1829-1917). The barrel has a globe front sight (post absent), band accents at the muzzle and transition point, and "N. WHITMORE/CAST STEEL/BOSTON." on the upper left flat near the breech. The lock is unmarked. It is equipped with a single set trigger and "lollipop" style tang peep sight. The furniture is all German silver.

Very good plus, with the finish on the barrel fading to a smooth brown, dark original case colors on the lock and upper tang, mild aging of the furniture, some casting pits on the side plate, minor edge wear and scratches, glossy original varnish on the wood, minor chips at the edges, and a repair at the forend cap. It is mechanically fine, but the set trigger needs adjustments.