'I am glad to see that you doubt whether the old Brittains had any Coins before ye comeing in of the Romans, I confess, I am still very confident they had not. The account which J. Caesar and others give of their conversation and manner of life affords little encouragement to think they were so far acquainted wth the mysteries of Trade as to have any occasion for coin’d money. We onely guess the hollow pieces you mention might be some sort of Brittish money; but when coin’d or currant no body can certainly determine. Some of the Conjectures which Camden makes upon such pieces as he believed to be Brittish differ very little from yr Countremans Bladud and Dr Plott’s Prasutagus.'
(Bodleian Library, MS Ashmole 1816, f.470; Burnett 2020b, p. 1553)