Knights of Labor. National Trade Assembly No. 252 (Metal-workers)

• Constitution of the National Trade Assembly 252 (K. of L.) Brass Workers of America, adopted at the session held in New York City, October 30 to November 1, 1888
• Constitution of the national trade assembly 252 (K. of L.), United Brass Workers, Metal Polishers and Platers of America, revised January 1st, 1892