Records of the Registrar General of Shipping and Seamen and successorBT 1391861-1921Registry of Shipping and Seamen: Registers of Certificates of Competency, Engineers
Registers of Certificates of Competency of engineers kept by the Registrar General of Shipping and Seamen and its predecessor.
Registers covering certificate numbers 39000-58999 are to be found at the National Maritime Museum under references: