A steam piston engine convocation Text on mock scrolls above

Text on mock scrolls above and below Lubbock's coat-of-arms within a scroll with botanical decorations including sheafs of wheat

in its form

All at x250 magnification

Disraeli on the left

A steam piston engine convocation Text on mock scrolls aboveSketch of a machine for raising water by steam, included in the manuscript copy account 'A letter to the Revd. Dr. John Harris F. R. S. relating to a pretended invention of Dr. Papin F. R. S.. By Thomas Savery Esquire F. R. S.'. Savery describes a model sent to him by the Prince of Hesse Kassel and his explanation of why it did not work. These improvements, he claims, were then appropriated by Denis Papin (1647 c. 1712) the Prince's operator. The