100 Pounds Bank of Scotland

Bank of Scotland's polymer £100 arrived as part of the coordinated Scottish polymer transition, with Clydesdale and Royal Bank of Scotland issuing their own redesigned high-denomination notes around the same period. De La Rue's polymer substrate — marketed as Safeguard — is sourced from a biaxially oriented polypropylene film rather than the Guardian substrate used for Bank of England notes, a distinction that matters to specialists tracking substrate provenance across UK issuers.

The £100 circulates far less than its face value might suggest; most Scottish hundreds move between businesses and banks rather than through ordinary retail. Genuine wear specimens from this polymer generation are genuinely uncommon this early in the series.