Including the Tubik concept and a Traction Avant development vehicle.

Inaugurated in 2001, the Citroen Conservatory located in Aulnay-sous-Bois on the outskirts of north-east Paris contains more than 700 cars from all eras, ranging from 1919 to current times.

The company with the double chevron logo is now selling 65 of these vehicles so that it won’t have to transport all of them next year when the largest collection of Citroens in the world is set to be moved. The remaining cars will be shipped to their new home located at L'Aventure Peugeot Citroën DS in Sochaux, near the Swiss border. 

The 65 cars are going to be auctioned off online and live at the heritage site on 10 December, with a pre-sale viewing arranged at auction house Leclere for the day before.  

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Citroen says it will used the money raised from the extensive sale to acquire further rare pieces in order to bolster its collection ahead of 2019 when the company will be celebrating its centenary. Estimates for the lots range from around £800 to over £18,000. The cars that will be up for grabs are mostly models of which the company has multiple examples, which means that by selling them it won't affect the firm's heritage collection.

Some of them are concepts while others don’t have a VIN, meaning the buyers won’t be able to register them for road use. There are also a lot of pre-production cars and a few rather interesting mockups. The small print from the auction house warns that the lots are being sold as seen, with mileage taken from the dials on the cars and not guaranteed. 

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It’s not just cars that will be available during the auction as Citroen will also sell other miscellaneous items, such as advertising posters, clothes, official photos, scale models, brochures and even body panels belonging to various race cars. 

The photos of the slideshow have been ordered chronologically, starting with the 1924 Type C and ending with the 2014 C4 Cactus.