George Osborne is "bluffing" when he insists an independent Scotland cannot keep the Pound, according to Scottish First Minister Alex Salmond.
But when speaking to ITV News Chief Secretary to the Treasury Danny Alexander accused Salmond of bluffing too, claiming he has no currency plan.
Both sides of the debate are now firmly entrenched, reports Martin Geissler:
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Clear, crisp & freezing cold with fresh falls of snow