Two Printed Cards (identical) and one mimeographed flier from the HOUSE OF KNOWLEDGE, 3821 Michigan Boulevard, Chicago
Chicago, IL, nd (c. 1966). Paperback. The cards are oblong 3.75 x 5.5", stiff paper, printed on both sides, some waterstaining (one more than the other), advertising "Salesman Wanted" to sell "...our History Calendar for 1966 and 1967"; on verso advertises Sunday programs ("Freedom Fighters and Freedom Month- Crisis/Black Power..... More