Early Shadow Silver action, black cover plate, signed "Nikko Arms Co Ltd." on underside of action, barrels stamped "Gunmark Ltd.", circa 1973, rib.
Black action Shadow, unusual, signed Kanematsu-Gosho
Nikko 5400 Shadow AKA Supermatic Shadow Seven.
No Airflow rib or forend slots
Shadow the most common Shadow model, silver action, medium Airflow aluminium rib secured by Phillips screw at breech, no