5 Pounds - Elizabeth II DBF: Bob Doe, Silver Proof

Jersey issued a succession of silver proof commemoratives through the 2000s under licensing arrangements that brought in outside designers — Bob Doe among them — for portrait and commemorative work that the island's own administration rarely handled in-house. The "DBF" designation marks this as a definitive base format proof, a classification used internally to distinguish standard-specification silver proofs from the heavier or larger prestige issues that shared the same nominal face value.

The 28.28g / 38.6mm specification was by this period the de facto benchmark for Commonwealth proof silver £5 pieces, adopted widely enough that dies and blanks could be sourced across multiple mints.