As the engine was out I figured I'd better check the fuel tank and fixings.. It was surprisingly solid and tidy in there, paint looked like new!! Someone had used clear sealant to vacuum seal the compartment, wonder if that helped preserving it? Anyway when I studied the tank closer I found this; I think it says Dave, liz, Tim + laurena with two American style dates, one 71 and one below 72. I could resist adding mine below