"The copper farthings were produced in 1672–1675 and 1679, weighed 5.2 - 6.4 grams, and had a diameter of 22–23 millimetres. The obverse had a left-facing bust of the king, with the inscription CAROLVS A CAROLO—Charles, son of Charles—while the reverse showed the left-facing seated Britannia, with the inscription BRITANNIA and the date in the exergue beneath Britannia." Wiki.
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If, for whatever reason, you are not completely happy with your purchase, please return for a full refund (I will also refund the price of your return postage).