Rhodesian Proof

FilamCoins

This appears to be a 1955 Rhodesia & Nyasaland 1/2 Crown Proof. Krause claims only 10 were minted with a value of $550.

Would you happen to know if this is correct?

coinpictures

Careful! That's the listing for the nickel version. The version in silver has a book value of $35.

I nearly made the same mistake looking at a slabbed one about 2 weeks ago.