[Leendert]

Laurent,

Edel's MACR says as location (map reference) M1505 as last seen.
This would roughly translate in 49°21'04 N and 1°02'52 E, or the southern rim of Rouen.

I'm not that experienced with map conversions, so perhaps another forum member is willing to do the calculation for you just to be sure.

Regards,

Leendert