Great Britain, 6 Pence 1956 - Crossover Mule, Rare?

My Coincraft 1998 Catalogue lists all varieties of Sixpences of Elizabeth as of equal value for condition.

There is a rare mule, with the obverse crowned effigy of Elizabeth 11, from the Mauritius Quarter Rupee.

I think I have heard about the Mauritius mule, but I'm not aware of any obverse varieties other than on the 1953 coins with the Britt:Omn legend and the weak and recut portraits.

I'm sure someone will have examined Elizabeth II sixpences in detail and noticed minute variations in the obverse portrait. But I don't think anyone has ever surveyed these coins to see how rare any particular variety is. British collectors tend not to get too excited about minor varieties and all Elizabeth II sixpences were minted in vast numbers and can still be obtained very cheaply in the UK.

Interesting - thanks for the link. I'd never seen that site.

I was aware of some Elizabeth II varieties such as the 1957 calm and wavy sea and 1967 narrow and broad obverse rim halfpennies, but never knew of these sixpences...