“This booklet is issued as a supplement to standard schedule governing rules and rates of pay of yardmen employed by the C.B. & Q. R. R. at Chicago, Illinois and also contains local agreements and general information pertaining to yardmen.” Issued by Brotherhood of Railroad Trainmen Lodge 479 It has handwritten markings suggesting that it may have been used as a model for another railroad or a later negotiated update to this agreement. Although not specifically dated, the most recent information in this booklet appears to be dated 1936.