18__ Dunkirk Warren & Pittsburgh Railway Stock Certificate. Attractive unissued New york-Pennsylvania railroad scripophily document with vignette of steam passenger train approaching passenger boarding platform. The Dunkirk Warren & Pittsburgh RW was organized after the Civil War with the first passenger train running in 1871. This line merged with the Warren & Venango RR to form the Dunkirk Allegheny Valley & Pittsburgh RR, which was leased to the New York Central & Hudson River RR Company in 1873. This antique stock certificate is in VF+ condition.