A gun hidden within a bible, made for Francesco Morozini, Doge of Venice (1619-1694). The owner of the bible could pull the silk bookmark to shoot while the book was still closed. Now on display at the Museo Correr in Venice.

Francesco Morosini was the Doge of Venice from 1688 to 1694, at the height of the Great Turkish War. He was a member of a famous noble Venetian family (the Morosini family) which produced several Doges and generals. He "dressed always in red from top to toe and never went into action without his cat beside him."

After his death in 1694, a large marble arch was placed in his honor at the Doge's Palace, and his cat, of which Morosini was notably fond, was embalmed and taken to the Museo Correr.