About: http://webisa.webdatacommons.org/205544612

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	Beginning with the McCormick-Deering 15-30 introduced in 1921, this book includes all wheeled tractors produced up to the last 650, including the Farmall Regular, the Model M, and the Cub.
http://www.w3.org/ns/prov#wasQuotedFrom	tractorpart.com