I just joined the group That picture is darn small :-) I magnified it, and it is very likely a 1947 '66' or '76' Oldsmobile convertibel.
It is not a 1946, they had a wider, taller badge at the fender spear.
It is not a 1948, because they had a steel mudguard (shiny!), this one has the rubber.
I have a 1946 sea foam green convertible, btw
Andreas
classiccarszone.org