This is a vintage copy of a US Air Force Weapons Laboratory document.
The title is Design Procedures for Shock Isolation Systems of Underground Protective Structures. Vol I.
It is dated June 1964.
This is a copy made in the 1970's. As such, these aged pages have a little bit of "yellowish" tint. That is, they are not white as fresh paper is.
There are three holes for binding, which were punched when the copy was made.
Thank you.