Blue Delft KLM house.

A vintage KLM Blue Delft pottery house still containing some Bols liqueur.

Collectable now I think and this is No.46 in the set.

From the KLM website.
Create your own Delft Blue city with our KLM miniature houses.
Unique gift in World Business Class
Since the 1950s, we present every World Business Class passenger with a unique gift: a Delft Blue miniature traditional Dutch house, filled with Dutch gin, also known as genever.

Each miniature depicts a real Dutch house. Every year on 7 October we celebrate the anniversary of KLM’s founding in 1919 by presenting a new house.

Over the years, our miniature houses have become desirable collectors' items, generating a lively trade among passengers.