Chamberlain key, whose grip carries the Austrian coat of arms, a double-headed and crowned eagle with a sword and apple. The eagle has a Maltheser cross on the chest and a shield with the letters F.I. The beard has a cloverleaf-shaped opening., c. 1800 - c. 1900, copper (metal), gilding, l 18.1 cm × w 5.4 cm.
Chamberlain key, whose grip carries the Austrian coat of arms, a double-headed and crowned eagle with a sword and apple. The eagle has a Maltheser cross on the chest and a shield with the letters F.I. The beard has a cloverleaf-shaped opening., c. 1800 - c. 1900, copper (metal), gilding, l 18.1 cm × w 5.4 cm