approximately 300 covers and cards in two binders, arranged alphabetically (from "22nd Street Station" to "Winnemac Station"), begins around the time Chicago stations reverted to their individual names in 1899 and continues through the new millennium, wide variety of postal markings in addition to interesting advertising, uses such as special delivery and airmail, and much more for the postal historian to enjoy, generally fine to very fine, an extraordinary collection which would take a lifetime to duplicate