highlighted by approximately 140 Columbian Exposition postal cards, many identified by UPSS number, mix of mint and used, a very useful selection; additionally better material from other expos including U218 and U219 used with typewritten addresses from the Centennial Exposition (11 and 28 recorded, respectively), 1900 Texas State Fair Barry machine cancel, 1901 Buffalo postcard with October 26 Bomar BO1-19 cancel, and much more, generally fine to very fine, an extraordinary lot for the specialist