Prices of exported coal. Return to an order of the Honourable the House of Commons, dated 27 April 1911;--for, return "giving the quantities of coal exported from each of the ports of the United Kingdom by quarterly periods in 1910, at prices not exceeding 5s., above 5s. but not exceeding 6s., above 6s. but not exceeding 7s., and so on, with comparative totals for 1906-1909 (in continuation of Parliamentary Paper no. 77, of session 1910)." [electronic resource].