I think one track is a trace of the straightening of the ring. But other effects of aggressive environment? Acidic soil. Because all the copies that I was able to naiyti interenet distinguished by quality and type and thickness of the enamel ring. If you have a photo copy of the same show please. Best regards, Anton
super dangerous SuperFake.. It was even made 'in the flat'.. The 'enamel' would fool most of us.. Lately they are made in Yellow with 3 rank gulls..BEWARE!