1. A New Touchstone for Gold and Silver Wares;Badcock,1679
2. The Navigator's Supply;Barlow,1597
3. Mathematics at the Mint: a seventeenth-century saga;Biggs;British Numismatic Journal,2017
4. More seventeenth-century networks;Biggs;BSHM Bull.,2017
5. Without grains: weighing silver coins in the civil war;Biggs;Br. Numis. J.,2018