Old toy dejou attelage old french wooden toy 50s

Hello, I am selling the magnificent toy shown in the attachment. It is a pull-along, entirely made of wood, manufactured by the Auvergne company "jouets dejou" in the 1950s. The set measures 75cm in length and is in good general condition. Note some chips on the horns, the ring of one of the two chains is missing, presence of rust on the metal rim of the wheels. The nail is obviously not original. Plan for cleaning (+ possible wood treatment).