About: http://webisa.webdatacommons.org/61857455

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	There are some examples know, on which there is a plate placed in the hollow reverse to get a solid reverse.
http://www.w3.org/ns/prov#wasQuotedFrom	ww2awards.com