Original Cold War Soviet MiG Jet Fighter Cased GSH-6A High Altitude Flying Helmet with Complete VMSK-4-15 Sea Survival High Altitude Flight Suit - VKK Flight Suit Category_MG 34 Reciever Assembly Comparisons with original cylinders indicate

Comparisons with original cylinders indicate that this is almost certainly a replaced cylinder

They are just a bit loose due to shrinkage

Genuine black classic Navy style pull-over black wool tunic from a Marine HJ Hessen-Nassau AH member complete with badges and patches

I cannot imagine

Canada (1892)

Original Cold War Soviet MiG Jet Fighter Cased GSH-6A High Altitude Flying Helmet with Complete VMSK-4-15 Sea Survival High Altitude Flight Suit - VKK Flight Suit Category_MG 34 Reciever Assembly Comparisons with original cylinders indicateOriginal Items: Only One Set Available. The Soviet GSH 6A (Russian: 6A) Pressurized Sub Orbital Flight Helmet was usually used on MIG 21, MIG 23 and MIG 25 fighter interceptor airplanes as well as for cosmonaut training flights. The clear pressure visor is electrically heated to prevent fogging of the visor. This example is offered in very good condition. Used in the early Russian space program and when flying at extremely high altitudes, this GSh 6A