Does anybody have any idea why all my old blue Tomica World Road & Rail System and Thomas & Friends Motor Road & Rail engines (Edward, Gordon etc) are suffering from some sort of discolouration of the body of the engine? Wheels are not affected... why? 
![[Image: IMG-20201005-132614.jpg]](https://i.postimg.cc/nLtzgQKS/IMG-20201005-132614.jpg)
They are all UK releases (Made in Thailand) and yes, they are at least 15 years old, but I didn't kept them in the sun or something like that; they were in the box. Why then this change of colour occurs? And, strangely, only blue engines are heavy affected, no such change of colour on my other trains... Does anyone else have the same problem maybe?
They are all UK releases (Made in Thailand) and yes, they are at least 15 years old, but I didn't kept them in the sun or something like that; they were in the box. Why then this change of colour occurs? And, strangely, only blue engines are heavy affected, no such change of colour on my other trains... Does anyone else have the same problem maybe?
My YouTube Channel: Mister No
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