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• The coal dealers assistant : Being tables calculated for the ready and easy finding out the true value of any number of Chalderns, from 1 to 200, at any of the usual prices, from 15s. encreasing 3d. each to 1l. 10s. per chaldern without mettage, and may serve for any higher price, by following the directions in the table annexed. For the use of masters of ships and colliers trading coastways, from the ports of Newcastle, Sunderland, Blythe, &c. By a gentleman of Sunderland. Never before published
  by: Gentleman of Sunderland
  Published: (1759)
• The coal dealers assistant : being tables calculated for the ready and easy finding out the true value of any number of chalderns, from 1 to 200, at any of the usual prices, from 15s. encreasing 3d. each, to 1ß. 10s. per chaldern without mettage, and may serve for any higher price, by following the directions in the table annexed
  by: Gentleman of Sunderland
  Published: (1759)
• Marshall's lighter-man's best assistant, or, Coal-dealer's guide : containing tables, exactly calculated for the ready finding out the true value of any quantity of coals, from 1 to 400 chaldrons, from 19£ per score to 40£ per score, reckoning 21 chaldrons to the score, including the metage-money
  by: Marshall
  Published: (1770)
• The coal merchant's and coal factor's assistant : consisting of a series of tables accurately calculated for the connvenience of all persons concerned in the coal trade
  by: Cove, L. H.
  Published: (1832)
• Tables and facts relative to coal duties
  Published: (1819)