Rayner in English Silver Coinage notes the 1697 Norwich Mint Halfcrown (550) as Scarce. The coin has the first draped bust and N (Norwich) below with NONO edge - Rayner, ESC 550 & Spink 3491. This is a 'Buy it Now' for a 1697 (N) King William III Silver Halfrown, which was minted at the Norwich Mint.
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