Thank you for looking. Break up of a substantial group of long-time RPO covers has made this available. This is the inaugural run of the Illinois Central Groen Diamond pioneer trainset, predecessor of the City of New Orleans, City of Miami etc. EMD streamliners later in the decade. Rarely offered cover shows little handling wear. and will be a great addition to your cover, ICRR postcard collection or American Flyer 0 scale train. This cover was posted on May 18, 1936 Gilman & St. Louis, the first run of the train. Shipping included in price. Thank you.