Polish Model 1954 Air Force No Maker. Blade #31814. Dagger is 13 1/2", 14 5/8" with scabbard. The dagger has a 9" nickel plated diamond cut blade. This is the nickel plated model. All fittings are nickel plated brass. From my observation, the 1970's change from silver plate to nickel plate took place at about #15,000. The scabbard is covered with black leather. Note the large eagle without crown on the pommel and the Polish Air Force symbol on the upper scabbard fitting. This is very late production.