crys·to·le·um
| \ kriˈstōlēəm \
plural -s
Definition of crystoleum
: an obsolete process in which a photograph was transferred to glass, the paper backing removed, and the image layer colored by the application of colors to the back
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Merriam-Webster unabridged
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Time Traveler for crystoleum
The first known use of crystoleum was in 1882
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