closed as off-topic by AllInOne, Kobunite, KorvinStarmast, Lars Bosteen, Jos Jul 25 '18 at 0:18
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is too basic; it can be definitively answered by a single link to the relevant topic on Wikipedia or another standard reference source. If you are instead questioning the correctness of a reference source, please edit the post to supply a link and explain what you find unclear, or why you believe it to be wrong or incomplete." – Kobunite, Lars Bosteen, Jos
This is a commemorative coin from the golden Jubilee of Queen Elizabeth the II It's not worth much - the above link suggests £1.79 at the time of answer for circulated, which is presumably what you can get for it in the UK.