![SPIRALE-01.jpg](https://borisachour.net/wp-content/uploads/2013/08/SPIRALE-01.jpg)
Vue générale / General view.
![SPIRALE-02.jpg](https://borisachour.net/wp-content/uploads/2013/08/SPIRALE-02.jpg)
Vue générale / General view.
![SPIRALE-03.jpg](https://borisachour.net/wp-content/uploads/2013/08/SPIRALE-03.jpg)
Vue de l'intérieur du cylindre / View of the inside of the cylinder.
Vue générale / General view.
Vue générale / General view.
Vue de l'intérieur du cylindre / View of the inside of the cylinder.