US M1 helmet Front Seam Fixed Bale with Firestone liner identified

American M1 helmet with front seam and fixed bale in very good condition. Complete with webbing chin straps. On the inside of the shell a name and service number is written. Complete with Firestone liner in good condition. All webbing and the leather chin strap is present and in good condition. In the liner the same name and service number is written. These can be traced to the original owner who served in the USAAF. This named helmet comes with the USAAF patch and the ribbon bar