Make: Cogswell & Harrison

Model: Sidelock Side by Side

Serial Number: 29530

Year of Manufacture: Circa 1895–1920, Classified as Antique

Caliber: 12 Gauge

Action Type: Break Action, Side by Side Shotgun

Barrel Length: 30” replaced barrels

Sights / Optics: The front sight is a brass bead mounted to the concave solid rib. The rear sight is a smooth plane typical of field shotguns.

Stock Configuration & Condition: The shotgun features a two-piece walnut stock with an English straight grip and checkered forend. The LOP is 14.75” from the front of the trigger to the back of the buttplate. There are some light scratches and compression marks present which is typical for its age. There are no chips or cracks. The stock rates in Good condition.

MType of Finish: Blued Barrels, Case Colored Receiver

Finish Originality: Original to their parts.

Bore Condition: The bores are bright. There is no visible erosion in the bore but there is some light fouling present. In this writer’s opinion, the bore rates 9/10.

Overall Condition: This shotgun retains about 98% of its refinished barrel blue. The balance of the finish light handling marks, with the receiver now faded to a silvery patina. There is light operational wear at the lever and top tang. The screw heads are lightly tooled with serviceable slots. The pins are clean. The markings are sharp. Overall, this shotgun rates in about Very Good condition.

Mechanics: The action functions correctly. The shotgun locks up tight with no play. The double triggers break cleanly. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements.

Box, Paperwork & Accessories: None

Our Assessment: Cogswell & Harrison, a storied British gunmaker dating back to the early 19th century, is known for producing elegant and reliable double-barrel shotguns favored by sportsmen across Europe. This particular side-by-side sidelock example, manufactured between 1895 and 1920, showcases the traditional craftsmanship that made the company one of London’s most respected gunmakers.

The shotgun retains nearly all of its professionally refinished blue, paired with handsome walnut stocks that exhibit honest field wear. The sidelock action remains crisp, and the 30” barrels deliver excellent bore condition, making this a functional piece with strong visual appeal.

Whether you're a collector of fine English doubles or a shooter with a taste for classic upland game guns, this Cogswell & Harrison offers the charm of a bygone era with practical shooting potential. As an antique, it also holds value for those seeking investment-quality firearms with historical pedigree.