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Rare Boom
Der’. warrison, John, 1693-1776. *XfE The principles of Mr. Harrison's time-keeper, TOT with plates of the same. Published by order of .H2kP the Commissioners of Longitude.
London: Printed by W.Richardson and S.Clark;
and sold by John Nourse,and Mess.Mount and Page. M DCC LXVII. [17671
xvii,C191-31 p. x pl.(1 fold.) 24.5x30cm. (ob1. fol. )
Preface and "Notes taken at the discovery of
Mr Harrison's. time-—_ keeper" by Nevil Maske- lyne: p.v—-xvii.