H&R Model 1915 Monitor .410 Bore Single-Shot Break-Action, 26 in Barrel, Walnut Stock (1920s–1930s)
This Harrington & Richardson Model 1915 Monitor is a small-frame, .410 bore single-shot shotgun from the 1920s–1930s with a 26-inch slim round barrel. It features the MONITOR receiver rollmark, a barrel marked ".410–12 m/m," and a classic break-open design with an exposed hammer and top-strap sliding thumb latch. The walnut stock and splinter forend, brass bead front sight, and hard-rubber buttplate round out a period-correct configuration tailored for straightforward field use.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Fouling: Moderate Fouling - Lead or copper fouling with noticeable buildup.
Bore Rifling: Not applicable - Smoothbore, no rifling present.
Specific Condition Notes: The metal surfaces show heavy finish wear with noticeable discoloration. The bore has areas of rust present.
What’s Included
- Harrington & Richardson Model 1915 Monitor .410 single-shot shotgun
The Model 1915 Monitor is built on a small-frame action with a break-open, single-shot layout, an exposed hammer, and a top-strap sliding thumb latch. It is configured with an extractor for uncomplicated unloading. Capacity is one round.
The 26-inch slim round barrel carries a single brass bead front sight, with no rib and a plain muzzle. The barrel is marked ".410–12 m/m," and the receiver is roll-marked "MONITOR," matching the period nomenclature and branding.
Stock furniture includes a plain walnut pistol-grip stock with a straight comb and a hard-rubber buttplate featuring a central medallion. The forend is a walnut splinter style. Length of pull measures 13.75 inches, providing a compact, handy fit consistent with the small-frame design.
Manufactured in the United States during the 1920s–1930s era, this example shows the correct period features and markings. An A-prefix serial is observed on the lower tang, consistent with the noted configuration and timeframe.