Photographic Documentation in Archeological Research: Increasing the Information Content

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Science  21 May 1965:
Vol. 148, Issue 3673, pp. 1089-1090
DOI: 10.1126/science.148.3673.1089


Improved records of observations on ancient seals were obtained by photography of the objects at two angles in polarized light; positive transparencies in registered combination with the negative both reversed intaglio to relief and increased relief, contrast, and detail of the cut surface.