This variety with the II above the king's head was first published by Alan Broad in the Seaby Coin and Medal Bulletin of March 1981. In his article '1662- Rose Below' he states "A look at the various patterns and proofs suggests that there was some argument about the wording that would look best on the obverse. If we assume the Rose Crown to have been first, we can see the Simon influence (as on the Petition Crown) in the wording CAROLVS... II DEI GRA; after the rose disappears, the wording is shifted round the bust to read CAROLVS II... DEI GRATIA.
There is a hint of desperate compromise in one unrecorded coin in my possession, the only example I have seen, where the II is placed at the very top, but to the left of the wreath though it is a Rose Crown. I wonder why this spacing was not adopted? This was perhaps a trial piece and I would be glad to learn of other examples.'

To date no other examples have come to light, and the coin remains a unique and enigmatic piece.