A genuine U.S. P-4B flight helmet as used by the Air Force, Navy & Marines. The PB-4 started being issued in the late 50's and was used through the early 60's during the Vietnam War. This particular helmet was used by the U.S. Air Force and has the vintage USAF decal to left side, retains the original twist and release chin strap with original leather toggle, retains the two quick release catches for oxygen mask attachment, tinted visor is in very good shape and retracts and pulls forward correctly and locks in place at either point. The internal padding like many of these helmets has perished over time, the helmet displays very well as it stands. Original manufacture label is still present showing a 1958 manufactures build date.