2016 Peter Rabbit Silver Proof 50p from Beatrix Potter Set COA. I will do my absolute best to describe each item as accurately as possible and to the best of my knowledge. Please look at the photos and read the description carefully. If you need more photos please let us know. Check our buyers feedback. We are always welcome to answer any of your questions. Track Page Views With. Auctiva’s FREE Counter. The item “2016 Peter Rabbit Silver Proof 50p from Beatrix Potter Set COA” is in sale since Thursday, January 28, 2021. This item is in the category “Coins\Coins\British\Decimal Coinage (c.1971-Now)\50p”. The seller is “working6daysaweek” and is located in Chelmsford. This item can be shipped worldwide.