This fresco of Cardinal Nicholas of Rouen, in the Chapter House, San Niccolò, Treviso, shows the cardinal reading with a quizzing glass, a single lens glass that was an alternative to spectac
This fresco of Cardinal Nicholas of Rouen, in the Chapter House, San Niccolò, Treviso, painted in 1351-1352, shows the cardinal reading with a quizzing glass, a single lens reading glass that was an alternative to spectacles..
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