Gahn's blue
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Description
An unstandardized commercial name that has been used for cobalt ultramarine, cobalt blue, and imitation cobalt blue. The name originally was given to an inferior grade of cobalt blue made by a process developed in 1777 in Germany (Mayer 1969).
Additional Information
R. Mayer, A Dictionary of Art Terms and Techniques, Harper and Row, New York, 1969.
Sources Checked for Data in Record
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)