Heliograph - CaLiGraph

Property	Value
rdf:type	Optical communication owl:NamedIndividual
rdfs:label	Heliograph
owl:sameAs	dbr:Heliograph
prov:wasDerivedFrom	http://en.wikipedia.org/wiki/Outline_of_communication http://en.wikipedia.org/wiki/Category:Optical_communications http://en.wikipedia.org/wiki/Outline_of_photography
skos:prefLabel	Heliograph
skos:altLabel	heliograph heliographs flash helio optical signal Heliograph heliographic signals heliographic station light emitting signal signal mirror signaling mirror solar signaling sunlight mirrors

About: clgr:Heliograph