Facsimile of certificates relating to Mr Shorter's propeller fitted to various HM ships. Also facsimile of promissory note granted to David Napier by Henry Bell.
Facsimile of certificates relating to Mr Shorter's propeller fitted to various HM ships, 1802. Together with facsimile of promissory note granted to David Napier by Henry Bell in payment of the boiler of the COMET, 1814. Originals in Napier Brothers papers.