Central Park Oddity

This singular cover in Central Park carries the name of JW Fiske, a 19th and early 20th century iron dealer, who's company continued on until at least the 1970's. The odd combination of a very clear name tag, with a cover pattern that appears not to have been worn away so much as to have been melted, makes identifiying the age of this beast problematic. it could be anywhere from 1865 when Fiske started a foundry in New York, to sometime before 1938, when a dated cover with tag "J.W. FISKE IRON WORKS" was produced. Fiske himself died in 1903 (Wikipedia).