Original U.S. Modern Helicopter Pilot Gentex SPH-4B Helmet with Upgraded SPH-5 Dual Lenses - Dated 1994 Century Grand Duke of Tuscany: Archduke

Grand Duke of Tuscany: Archduke Joseph Ferdinand (1872-1942) or Archduke Peter Ferdinand (1874-1948)

The problem with gunpowder (real gunpowder not pyrodex) in a powder horn

AH challenged all able-bodied boys age 16 and up to compete for the award

The upper receiver rear of the ejection port has been completely replaced with a solid steel dummy receiver

either via a manually operated pressure switch or

Original U.S. Modern Helicopter Pilot Gentex SPH-4B Helmet with Upgraded SPH-5 Dual Lenses - Dated 1994 Century Grand Duke of Tuscany: ArchdukeOriginal Item: Only One Available. This is a United States Helicopter Flight Helmet type SPH 4B made by Gentex. The helmet is in overall good complete condition with the liner, headset, visor, microphone, and upgraded SPH 5 dual tint and clear visor. The helmet is maker marked by Gentex and is a Size Extra Large and is dated May 1994. The helmet retains its data tag: HELMET, FLYERS, SPH 4B X LARGE LOT NO. 13 8415 01 308 5360 72724 89D7825 2 SP0100 94