1. Treasure trove, 1933-9;Allen;British Numismatic Journal,1938
2. Mint output in the English recoinage of 1247-1250;Allen;British Numismatic Journal,1999
3. The volume and composition of the English silver currency, 1279-1351;Allen;British Numismatic Journal,2000
4. The volume of the English currency, 1158-1470;Allen;Economic History Review,2001