Busy administrators kept long lists of how many chairs, cupboards, spittoons and other essential household items were needed for a stay of the family and their guests. It was all inventoried as mahogany, oak or pine. Rank of guest, family or staff determined what you got. We can see a lot of scope for deals and complaints and indeed, the depot was regularly criticised. Furniture was delivered by cart or train.
The depot is still used to furnish embassies and for state functions, so not everything is neatly arranged. There are style rooms and important items are placed in historical context. This is where the furniture in the Sissi films came from.