About: http://webisa.webdatacommons.org/166652300

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	The image most be created while the plate is still wet with chemicals, so a portable darkroom is a necessity in the field.
http://www.w3.org/ns/prov#wasQuotedFrom	mappingtheedge.com