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Hi Stew.
As for who made it - one of the various workers at Caithness at the time. Who designed it - Colin Terris. Value? We don't offfer values on GMB, but as a general rule, many Caithness paperweights sell for no more than 30% of issue price - which for this piece was £65.00. It is worth noting that the Charlton catalogue prices are wildly optimistic for many designs.
Alan