About: http://webisa.webdatacommons.org/320025837

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	Much cheaper to buy the small drawings and have them enlarged.There are a number of books on single shot falling block actions especially the 6 book series on the British Single Shot Falling Blocks by Wal Winfer.
http://www.w3.org/ns/prov#wasQuotedFrom	assra.com