The KLM Blue Delft House BOLS Amsterdam is a souvenir item originating from the Netherlands, specifically created by the airline KLM. This collectible piece is part of a series of items related to aviation and transportation, making it a unique and special item for collectors and fans of the KLM airline. The item is sealed and not empty, adding to its appeal as a rare and valuable piece for enthusiasts of Dutch aviation history. Bought from a collector.