The Cabinet-Maker and Upholsterer's Drawing-Book: In Four Parts. E-book. Formato PDF Thomas Sheraton   -  Forgotten Books, 2017  - 

Derivation Of the Terms Hemisphere and Section, Of the Sections and Coverings of regular and irregular Figures, Problem 21. Of the Covering for a Vase, Of the Covering of an irregular Vase, Of the Covering of a Sphere, 23. The Section and Covering of a Knife-case.