Watch List notes:

Halfcrown 1848 8 over a 7 with strong evidence of a diagonal down stroke in the lower loop of the 8, and exactly the same as the example in the Colin Adams Collection and subsequently in the Roland Harris Collection (London Coins Auction A124 Lot 436), unlisted by ESC, VG or better the overdate clear, Very Rare

Estimate: 200-400 GBP