About: http://webisa.webdatacommons.org/222620738

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Its speed was a constant 60 mph, all day, and it was the prototype for what the Pennsylvania Railroad intended to replace its fleet of K4 locomotives, which were introduced in 1914.
http://www.w3.org/ns/prov#wasQuotedFrom	shorpy.com