The second bottle pictured above is a "400" bottle. The bottle is also embossed "The only fresh chocolated milk with rico flavor". "400" was a franchised product that was introduced by Walter Jahn in the early 1920's. The dairy was required to purchase the chocolate syrup and the bottles from the "400" Products Company of Chicago, Illinois. There was no franchise fee and the "400" Products Company handled the advertising for the product. The price to be charged for the 7 ounce bottle was 5 cents. The brand did not last long. By 1925 the formula was sold to the Dairy Drink Company, also from Chicago, and was called Chocolated Dairy Drink. This bottle is not in any way related to the train that also used the 400 name. We have seen this bottle sell on ebay as a railroad collectible and for sure the product was not unique to the railroad. It possibly was served on trains but it was also available to all dairymen and was not exclusive to any train. The bottles were made by the Atlantic Bottle Company of Brakenridge, Pennsylvania and would date prior to 1930
That bottle is fairly common here in the mid atlantic they can range form 15-40.00 depending on who is selling them.. still a nice looking tall blob ..