It might just be the quality of the photos, but the grey looks way too dark and the numberboards look more turquoise than green.
Could well be a respray. Looks very tidy externally, but until you get the engine opened up you never know for sure.
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Rich
MC21 Track Bike / RS250 NF5 'Spencer', NX5 'Cadalora' & NXA 'Aoyama' / RS500 / Two Brothers Racing RC30