Letter and envelope from Richard Prosser, London to Prudence Nightingale (nee Hackworth), Leamington
- part of archive:
- Hackworth Family Archive
Acknowledges pamphlets and has had correspondence with the Newcastle Journal opposing exaggerated claims made for William Hedley. Suggest copies of pamphlets be sent to the British Museum, Patent Office Library, Institute of Civil Engineers & Patent Office, Washington, USA.