Original Or Fake Iab?

[javi_e]

A few months ago I bought this IAB badge,i cleaned it yesterday because it has a lot of gray color,you can see this color on the reverse of the badge.I don´t know if it is original because in one of his leaves it lacks a detail; manufacturer failure? fake? if it is original...who made this badge?
You can see the photos on this blog,
http://tonyrockyhorror.blogspot.com/
Thank you in advance,and sorry for my bad english!!

[Ken S]

if I could see a side view It would help, the gray color is nothing to worry about as zinc badges will turn gray
all the best
ken s

[javi_e]

More pics...

[javi_e]

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[javi_e]

[Ken S]

I think its a good one
all the best
ken s