Each of these booklets represents the public notice of patents granted by Royal decree or those held as Provisional. Each is wrapped in original blue paper cover, 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 booklets that describe the intense work by inventors who were making incremental improvements in the globe and map making process. In many cases the patent application was made decades earlier.

A) A.D. 1808 - No. 3147. Specification of George Pocock. Geographical Slates., 1856. Geographical Slates for use in schools. Includes a large fold-out plan.
B) A.D. 1830 - No. 5894. Specification of George Pocock. Globes., 1857. Extensive description of folding globes. Includes a large fold-out plan.
C) A.D. 1854 - No. 425. Specification of James Morison., 1854. Globes. Collapsible or folding globe.
D) A.D. 1856 - No. 1338. Specification of John Betts. Collapsible Geographical Spheres., 1856. Includes a large fold-out plan.

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Condition: C+

Covers slightly soiled and chipped. B) the fold-out plan is split in half along a clean tear. D) the fold-out plan has a long fold separation.