- NLW MS 11501E.
- Ffeil
- 1826-1849?.
A register of fire policies effected with the Alliance Company in Caernarvonshire, Anglesey, Denbighshire, and Merioneth, 1826-1849?. The majority of the policies refer to properties in the town of Caernarvon and in the parish of Llanbeblig, Caernarvonshire.