COPPER

All five items rolled up. ONE: Cloth-backed map. Title in large coloured fancy letters at head: 'PLAN OF TREVAUNANCE COOMBE'. Dimensions: 99 x 353 cm (3 1/4 feet x 11 1/2 feet). 'Scale | 4 FATHOMS TO 1 INCH'. Oval stamp of Henderson & Son, Civil Engineers, Truro, in bottom right-hand corner, with manuscript date 31 March 1885. Drawn in black ink, and coloured in blue, grey, brown and red. In fair condition, aged and worn. Striking and attractive, with neat lettering, fancy compass (with projected line marked 'MAGNETIC | 1881'), and ruled border with decorative corners.

Folio, 3 pp. Bifolium. Full title lengthwise (because intended to be folded into packet) on reverse of second leaf: 'An Account of the Quantity of Copper Coined by Mr. Boulton, Distinguishing the Amount of Twopenny Pieces, Penny Pieces, Halfpence, and Farthings into which it was coined, with the Nominal Value of each: And also, A Statement of the Market Price of Copper At the Time the Contracts were made with Mr. Boulton.' Text clear and complete. On aged and creased paper. The first page, with '(95.)' in bottom left-hand corner, prints the transcript of a letter from 'M.

Printed on one side of a piece of wove paper, dimensions 22 x 14 cm. Text clear and complete, on aged and lightly-spotted paper, with minor wear to extremities. Headed 'Under the Patronage of the Nobility and Gentry.' 48 lines of text, including positive quotations from the Observer, Christian Advocate, Sunday Times and Albion and Star. Describes ten aspects of the exhibition, lettered A to K, including the conveyance of the ore 'to the surface by a --- (G) --- POWERFUL HYDRAULIC MACHINE, first in kibbles, through a perpendicular shaft, and lastly in waggons drawn upon an inclined plane'.