This rare Alfred Jenks & Son "PHILADELPHIA" marked rifle-musket has "IN" stamped on the left stock flat, indicating ownership by the Fenian Brotherhood, an Irish-American secret society who famously attempted raids on Canada after the Civil War. "1862" dated tail of the lock with "U.S./PHILADELPHIA" marked at the center, "1863" dated top of breech with "V/CP/(eagle head)" proofs on the left quarter of the breech, and bordered script "CGC" inspection cartouche stamped on the left stock flat.

Very good, with some scattered light pitting on the lightly cleaned iron surfaces, with visible markings. Stock is fine as re-oiled, with some light scratches and dents, minor hairline cracks behind the upper tang and lock, and clear stamps. Mechanically excellent.