1. Mail routes. Schedule of mail routes, no. 587. May 14, 1940, 4th division, Railway Mail Service, comprising Alabama, Florida, Georgia, South Carolina, Tennessee, Puerto Rico and Virgin Islands. Bookmark Corporate/Agency Authors: Railway Mail Service, International Postal Service Division, and Post Office Department Publisher: Railway Mail Service Date: [May 14, 1940.] SuDoc number: P 10.12/4:587