Why don’t you list bullion sovereigns or multi-coin auction lots?
The Vault is built to show the upper end of the gold sovereign market — individually catalogued, single-coin listings where grade, mint mark, strike type and provenance matter. Bullion-grade sovereigns and bulk auction lots (three-coin sets, mixed-date groups, dealer pallets) price on weight and spot, not on numismatic premium, and they would swamp the signal we’re trying to surface.
Concretely, our pipeline filters out:
- Multi-coin auction lots (trios, pairs, year sets, monarch sets, proof sets, boxed sets)
- Bulk bullion parcels and dealer group lots
- Coins outside the classic period 1817–1952 (modern Elizabeth II and Charles III bullion issues)
- £5 / five-sovereign gold pieces — a different denomination
The result is a catalogue focused on coins that trade on their individual merits. If you are comparing what a specific 1887-S Jubilee Head or 1920-M St George sold for, the dataset is cleaner and the premium statistics are meaningful.