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Signature of Sir Humphrey Davy,1778-1829. English chemist and inventor. Inventor of the Davy lamp. President of the royal Society. From the book “National Portrait Gallery Volume I” published 1830.
UMG26A30_077

Signature of Sir Humphrey Davy,1778-1829. English ...

Signature of Sir Humphrey Davy
UMG26A30_078

Signature of Sir Humphrey Davy

The Royal Institution electric battery
UMG20B19_104

The Royal Institution electric battery