About: http://webisa.webdatacommons.org/133095271

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	To make it convenient for the pilots to control the time precisely in all kinds of adverse weather conditions during a flight mission, the pilot was required to wear the B-Uhr outside the uniform.
http://www.w3.org/ns/prov#wasQuotedFrom	de-timekeeper.com