As someone already said, this is a Black & White special series specimen.
The Black & White series comprised of models 105, 108, 110 and 112. The series was produced for only a short
period of time in 1986 for a marketing campaign together with scottisch Whiskey brand "Black & White".
The only model having a plastic tank was the 110. All 112 had metal tanks.
Here are some fotos of all four Black & White models:
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