Drawings, miners' safety lamp by [Humphry Davy] Plate 1 showing safety lamp designs and details comprising figures 1-8 of the published plate, in a variant order. Figures 9-11 which appeared on the published plate are not present. The work is inscribed with publication and plate details. Not signed. Royal Society stamp verso. Subject: Engineering Published in Philosophical Transactions as part of paper titled 'On the fire-damp of coal mines, and on methods of lighting the mines so as to prevent its explosion' by Humphry Davy. Read to the Royal Society on 9 November 1815. [1815]