Original Gentex SPH 4 Flight Helmet Shell with Visor Housing Cover Metallic Blue, Size X-Large

This is a original Sound Protective Helmet-4 shell (SPH-4) , new custom painted metallic blue,the SPH-4 had a shell made of fibreglass cloth layers bonded by epoxy, very nice helmet shell include the visor housing cover blue painted , all in very good original condition, No other parts available,original labels are present , Head for display purpose only and not included in sale , ,this is a beautiful project restauration Set ,