Records in this collection have been arranged into nine sub-series as follows :

C DBBL/1 - Minutes

C DBBL/2 - Company books, registers and ledgers

C DBBL/3 - Accounts and financial reports

C DBBL/4 - Boyd Line personnel files

C DBBL/5 - Shares and settlements

C DBBL/6 - Invitations, circulars and leaflets

C DBBL/7 - Ship plans, specifications and contracts

C DBBL/8 - Boyd Line working files

C DBBL/9 - Photographs