bought this a while back because of the slightly smaller looking 5, had a look again a few weeks later and noted the R in Victoria has been replaced by a B, you can see the the tail of the R but the letter is clearly a B
Interesting. The date on yours is almost identical to mine. However, the non-wonky underlying '1' (yes clearly double punched on yours) is not - or barely - evident on mine, whereas the doubled 8 is, so is the 'twin tailed' 6, and the width of the numerals. It would seem to be the same reverse die.