The cabinet-maker and upholsterer's drawing-book : in four parts (1802)
Sheraton, Thomas, 1751-1806 · London : Printed by T. Bensley ... for W. Baynes · leaf 535
o e cuts the arch, and by replacingthis opening from c to g^ and ftriking a line from o to g throughto/, o/will be its projedlion as before; on which principles ofwill be in a ratio with o e. This the workman can prove, forby comparing o f with the length of the projedlion of A, hewill find it… … -^. t.J^^f^///t(7t4/.f4ftYr /// r////////f<^n rym/t.y^/^fre (^Wf7/r^^.