For fictional prototypes, photos and art extracted from the work of science fiction, or from advertising or publicity for the work are acceptable. Photos and drawings of props used in filming of works of science fiction are acceptable. If the original work did not depict the vehicle in color, colors of contemporary vehicles may be used to suggest a scheme consistent with the original work.
For proposal prototypes, photos and drawings of models produced by the proposing companies or institutions are acceptable. If color or markings data is not available, the modeler may document markings for a similar design proposed or flown in the same era. Drawings or photographs depicting flying model kits are not adequate.