I'm sure, The Blue Flame that I saw in my hometown (I think in 1972) was not the real thing. If I remember well, there were no rivets on the fuselage. Again, look closer to the 3 photos:
The first one with Gary at Bonneville, 1971.
The second one in France, 1972.
The third one in Germany, where you can see The Blue Flame today.
Photos 1 and 3 have the same lettering and on the same place. In photo 2, the lettering is different.