The panetiere was/is a wooden French bread box or bread bin; and a gloriously elaborate one at that. Not your 1960s bread box - causing a rethinking of the querry - "Is it bigger than a bread box?" More examples follow.
"The Little Mouse, who made itself a House in a Christmas Cake" - excerpts of the poem with illustrations from the book Aunt Affable's New Books for Children. London: 1844