Yes I'd say you're right Ellis, the b/w photo is almost certainly when the car was painted blue. From what I can gather, it was painted blue for 1970 when CAMS allowed the teams to fit 10" wide wheels, so Allan flared the guards to fit his new Minilites. You can see the guards look stretched here, though interestingly it looks like he still has the 8" 5-spokes in this photo.