Travel pyxis, 1811-1814, Giovacchino Belli, Italian, 1756-1822, 6 5/16 × 2 7/16 × 2 11/16 in. (16.03 × 6.19 × 6.83 cm), Parcel-gilt silver, Italy, 19th century, In the Catholic church, a pyxis serves as a receptacle for the Blessed Host. The four cherub heads, which decorate its cover, allude to the divine content, but they also refer to the teaching, according to which the Mass on earth is mirrored by the divine liturgy of the angels in the parallel universe of heaven.