Thanks. Research reveals it is
This is what I came up with on the research:
Antique Railroad Baggage Tag
Instead of the paper tags used at airports today, Railroads in their early days used brass tags to keep track of luggage. One tag would be affixed to the bag and put into storage on the train, while the other tag would be given to the owner who could trade it in for their bag at the destination. Tags typically included the name of the railroad, an ID number, sometimes the name of the destination, or the company who produced the tag. Antique railroad baggage tags come in many different shapes, and have long slots on them for the leather straps that would attach them to the baggage.)
Further research revealed the S stood for Solomon. Solomon Jacobs owned 4 saloons in Dallas. The saloon on 514 Commerce st, Dallas, TX was operated from 1915-1917. After that the saloon became The Hudson Cafeteria. The Interurban Railroad running between Dallas & Corsicana started up in 1913. 95 saloon licenses was issued & approved by state authorities during this time frame. This information was documented by early copies of the Dallas Morning Newspaper. Thanks to a Corsicana historian for provid