Why are you trying to be so precise ? The only important thing is to know if there was or not a lighthouse for each place. If it's too hard to find info about the aspect of the building and light color/sequence during the 1940s, let's use the nowadays characteristics. Moreover, the lights will be switched off during the war, so why taking so much care about them ?
If you agree, after La Vieille, La Plate and Le Chat are finished, I would like to focus on Le Four (which can be used on several places).
