(Phrenology) "The Proper Study of Mankind Is Man", illustrated Fowler & Wells advertisement showing Skull with the partitioned "Brain Organs", on cover to South Hope, Me., franked with clear to mostly large margin 1851 3¢ brownish carmine tied by "New York, Jul 1, 1857" cds, reverse with additional allover ad text, with four matching enclosures including subscription prospectus and matching illustrated 1857 certificate of agency, Extremely Fine. Scott No. 11  Estimate $400 - 600. The foremost American phrenologists, were the Fowler brothers, Lorenzo and Orson, who began reading heads in New York in the 1840s. Joined by Samuel R. Wells (1820-75) in 1844 their publishing industry churned out vast quantities of phrenological periodicals, pamphlets and books. $0 (Image)

(Phrenology) "The Proper Study of Mankind Is Man", illustrated Fowler & Wells advertisement showing Skull with the partitioned "Brain Organs", on cover to Dearhoffs Mills, O., franked with 1851, 3¢ dull red tied by neat "New - York, Mar 27" cds, Very Fine and choice, ex Biddle. Scott No. 11A  Estimate $200 - 300. $0 (Image)