Front and rear views of an Elizabeth I silver sixpence from the London Mint.

This is a very simple one to date as the reverse is very well preserved so you can clearly see it dates from AD 1569.

The face has survived less well but the left facing Queen can just be seen with the crown visible.

Below is the Portable Antiquities Scheme database entry on the coin
https://finds.org.uk/database/artefacts/record/id/1139058