In the photos i have seen in period they look darker, but without it infront of me i cant say off the top of my head with accuracy..

    The best chance you have are 2 ads from the USA .. 1 is a green tiger infront of a plane with an airhostess near it.. car has LAT 9’s and whitewalls.. is a colour picture.. and the LAT "postcard" with a red tiger with LAT 9’s.. i have both pics and can post tomorrow. Or you may have them in your collection.