very strange William III Halfpenny

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This is a William III halfpenny dated 1700 - in a very worn condition.

The picture below shows the end of Britannia (rev)- it reads Britaneia instead?? I cant find any info on this.

Also (obv) it reads GVLIELMS instead of GVLIEMVS

[Peckris 579]

This is a William III halfpenny dated 1700 - in a very worn condition.

The picture below shows the end of Britannia (rev)- it reads Britaneia instead?? I cant find any info on this.

Also (obv) it reads GVLIELMS instead of GVLIEMVS

Interesting. The GVLIELMS variety is listed in Spink, but the BRITANEIA isn't (and it seems quite clearly to be an E doesn't it?) There are lots of error types for William III copper, including a BRIVANNIA listed as Extremely rare, so I'd send yours up to Spink perhaps, or the Royal Mint, and see if you can get a verdict on it?

[rolling 0]

Ok Thank you for your help. I knew about the second error...I have a few books and they have all stated the error but the Britaneia is not stated. I will get in touch with Spink. Thank you so much.