Philadelphia: Knights of Labor, n.d. but before 1893. Scarce recruiting circular for the Knights of Labor, undated but presumably issued before Powderley lost the Master Workman election of 1893. Opening text differs from the earlier, 1885, circular, here describing the Knights as "not a political party, it is more, for... More about Preamble and Declaration of Principles of the Knights of Labor [verso title: The Requirements of...