I still think there is only one die for these, as that was the 4th I'm aware of, and they are definitely the same obverses. There are 2 different reverse dies however, which is probably to be expected (see alignment of 17 and final A). My current example is the third coin, which I picked up in DNW 76, lot 287. My first one came from ebay in 2004 and both cost a tenner.
Excuse the GV/B 1694 which was added to keep things neat. That was the discovery piece by Colin Cooke in 2004. I have since upgraded that with the superb example in London Coins 168, lot 1407. I saw it, GV/B not mentioned in the description, compared with mine and promptly put a very large 'must buy' label in my shopping list. Those are the only two I have recorded, but there must more out there.