Answer: diptychs

AnswerCrossword Clue
DIPTYCHSTwo-paneled paintings
diptychsDIPTYCH, an ancient writing tablet, also DIPTYCA
diptychsA painting, esp. an altarpiece, on two hinged wooden panels that may be closed like a book
diptychsAn ancient writing tablet consisting of two hinged leaves with waxed inner sides