Three public notices of patents granted by Royal decree. Each is with blue paper cover sheet, disbound from a large volume. Printed at the Great Seal Patent Office, 25 Southampton Buildings, Holborn and printed by George E. Eyre and William Spottiswoode. A collection of rarely seen patents that describe the intense work by inventors to make incremental improvements in the globe-making process.

A) A.D. 1853 - No. 2457. Specification of Jean Baptiste Verdun. Globes, 1854. New method of globe-making. B) A.D. 1853 - No. 1093. Specification of Jean Baptiste Verdun and Jean Baptiste Mertens. Globes, 1854. Method of constructing globes. C) A.D. 1851 - No. 13,481. Specification of Juan Nepomuceno Adorno. Maps, Globes, &c., 1857. Complex patent - drawing maps on a plane that represents a spherical surface. Inventing new constellations, superimposing a celestial globe on a terrestrial one and re-naming stars.

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Condition: B+

Covers slightly soiled. C) has a short fold separation in one fold-out plan that does not enter image, and long fold separations in remaining two fold-out plans.