| http://www.w3.org/ns/prov#value | - He used the term photoplastic for metaphysical photomontages he created in 1920's, but the term did not propogate then.* To ???certify??? that a still image is a photograph, not a photoplast, an image might be published with the symbol [circle G] , analogous to ?? [circle C] for copyright and ?? [circle R] for registered.
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