Chicago: Charles Kerr & Company, [circa 1906 - 1908]. Pamphlet. 26, [vi]p, original red glassine wraps chipped on the edges, paper browned with minor chipping in the margins, 3.5x5.75 inches. Noted on the title page: Excluded from the second class mails by Edwin C. Madden [then an official in the Chicago post office] Pocket library of socialism, no. 35.
One of the few Kerr pamphlets that we've seen with a notation that it was banned by the post office from the mails.