The India officer's and trader's pocket-guide. In purchasing the drugs and spices of Asia and the East-Indies: With practical directions for the choice of diamonds, and an accurate account of the Chinese touch-needles [by W. Lewis] ... To which are prefixed, a complete account of the officers privilege ... and the duties of, and drawbacks on, East India goods. / Compiled from authority by H.D.S. [i.e. H.D. Steel].

Licence: Public Domain Mark

Credit: The India officer's and trader's pocket-guide. In purchasing the drugs and spices of Asia and the East-Indies: With practical directions for the choice of diamonds, and an accurate account of the Chinese touch-needles [by W. Lewis] ... To which are prefixed, a complete account of the officers privilege ... and the duties of, and drawbacks on, East India goods. / Compiled from authority by H.D.S. [i.e. H.D. Steel]. Source: Wellcome Collection.