Photos: Anti-marijuana propaganda -- a vintage guide to reefer madness

Our newish Colorado Cannabis Time Capsule feature spotlights hysterical pot reporting from days gone by -- from 1937's "School Children Buy Drug" to 1968's "Anti-symbol Hippie Ponders Future in Jail."

Today, in that tradition, we've assembled a gallery of anti-marijuana propaganda from the 1930s to the 1970s. Check out the reefer madness below.