ALS to William Blathwayt, WhitehallBlathwayt, William, 1649?-17171699 Jul 11engConcerning the Irish counterfeiters in prison at Arnheim; warrant for bucks for Lord Mayor and Sheriffs; return of Williamson to London. 1. Counterfeits and counterfeiting-- Great Britain. 2. Williamson, Joseph, Sir, 1633-1701.