Great looking jersey! It is a beautiful piece, but I also have some questions as to if it is a fireman's jersey. Looked up "HVF Co Baseball" & "HV Fire Company" and Huntingdon Valley Fire Company #1 came up first on google search. Near Philadelphia. Don't know how Mastro reached their conclusion, or what provenance they have to back-up their claim it is a baseball jersey. Oh well, still a great jersey!

http://www.hvfire.org/history.html