Search Results - Ibbetson, John Holt

A treatise on the manufacture of gas : illustrative of the theory and practice of certain improvements in the system, which the author has made the subject of a patent / by Ibbetson, John Holt

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A practical view of an invention for better protecting bank-notes against forgery : illustrated by various specimens / by Ibbetson, John Holt

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A practical view of an invention for the better protecting bank-notes against forgery : illustrated by various specimens / by Ibbetson, John Holt

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A specimen of a plan for protecting bank notes against forgery. by Ibbetson, John Holt

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