The index page for the 1954 French flap section of this site is here.
Reference number for this case: 23-Oct-54-Mundolsheim. Thank you for including this reference number in any correspondence with me regarding this case.
[Ref. 1013:] CHRISTIAN VALENTIN:
Journalist Christian Valentin indicates that on October 23, 1954, at one o'clock in the morning, little before the crossing towards Mundolsheim of the road from Strasbourg to Haguenau, an object releasing an unreal light was seen, motionless at a few meters above the fields.
Not looked for yet.
(These keywords are only to help queries and are not implying anything.)
Mundolsheim, Bas-Rhin, object, light, luminous, motionless, low, fields, night
[-] indicates sources which I have not yet checked.