Pamphlet, "Description of the use and application of a new patent saccharometer", by William Speer MRIA, 1806. For actual instrument see 1876-1072 Pamphlet, "Description of the use and application of a new patent saccharometer" 1806
Drawing. Black ink, parts for reducing sculpture copying machine bult by James Watt, 1806-1808. Drawing, parts for reducing sculpture copying machine 1806-1808
Drawing. Sketches and instructions for mounting a diamond on the end of a wire. dated Heathfield Oct 30th. On reverse, 30 Oct 08 / JWatt[?] Senr[?] / Drawing of a Diamd for Nathan. 10" x 8" no watermark. Sketches and instructions for mounting a diamond on the end of a wire 1808
Harpenden pocket stadiometer sent out to Ludlow Boys' School as part of a series of nationwide measurements 1972-3
Small stone scarab pierced longitudinally with flat base engraved with design of standing harpist and seated figure 2000-1000