AI Appraisal Estimate

This item is an original World War I-era 37mm artillery round, likely used in the M1916 37mm infantry gun or a similar light autocannon. The piece consists of a solid steel projectile seated within a cylindrical brass cartridge case. The projectile features a tapered, conical nose with a dark, oxidized patina typical of aged steel. Below the nose, a copper driving band is visible, exhibiting stamped markings that include 'LOT' and numerical sequences '1075-38', which served as manufacturing tracking data. The cartridge case is constructed of brass, showing a significant aged patina with areas of verdigris (greenish oxidation) and surface scuffs consistent with its age and handling. The additional context provided, 'P.E&M.CO 12-16 U.S.A', indicates the manufacturer (Poole Engineering & Machine Co.) and a production date of December 1916, placing it firmly in the late WWI period. The craftsmanship is industrial and robust, designed for military utility rather than aesthetics. Overall condition reflects a century of storage, with minor pitting and surface wear but no structural deformation recognizable. The presence of the driving band suggests the projectile was never fired, making it a complete 'fixed round' display piece.

I have conducted a visual examination of this WWI-era 37mm fixed round. The markings 'P.E&M.CO 12-16' confirm production by Poole Engineering & Machine Company in December 1916. The item appears to be an authentic M1916 Trench Gun round. The projectile remains unfired, evidenced by the intact copper driving band. The condition is fair to good; the brass casing shows heavy oxidation and verdigris, while the steel projectile displays deep patina and minor pitting. Market demand for WWI ordnance remains steady among militaria collectors, though 37mm rounds are relatively common compared to larger calibers. Value is driven by the clear manufacturer stamps and the sought-after December 1916 date. Limitation of this appraisal: Visual inspection alone cannot confirm the inert status of the item. For full authentication and safety verification, an in-person examination is required to ensure the primer is struck and the projectile is free of energetic fillers. Total value assumes the item is chemically inert and lacks hazardous components. Documentation of provenance or a certificate of deactivation would enhance marketability.