If the two digit date ("19" is assumed) is not stamped on the bottom of the barrel, then perhaps someone extremely knowledgeable about the barrel roll markings can give you an "era" or "range."
Clinging to guns & religion since 1959
Keyboards make people braver than alcohol
Election Integrity is more important than Election Convenience
Washington Post: "Democracy Dies in Darkness" More correct: "Killing Democracy Faster Than Darkness"
