Customs coal returns compiled by the Aire and Calder Navigation Company for the Port of Goole for the year 1906. The file is divided into monthly bundles which typically contain:

1. A summary of the quantity of coal shipped ex-rails and ex-compartment boats, with cumulative totals for the current year, and a comparison with the previous year.

2. A statement of the particulars of the coal shipped via compartment boats, both as cargo and bunkerage, identifying the collery of origin.

3. Returns of the amount of coal, coke, and pitch exported via coastwise and foreign shipping (including the amount of coal shipped to London).