those crackers are already on e bay
When they cleaned out the bomb shelter beneath our school back in the seventies, they distributed those crackers - and they were great!
Better than any cracker I've had since.
Right you are, but from another shelter:
http://cgi.ebay.com/Cold-War-Era-1962-CIVIL-DEFENSE-SURVIVAL-CRACKERS-TIN_W0QQitemZ6550648979QQcategoryZ588QQssPageNameZWDVWQQrdZ1QQcmdZViewItem