My Machine for Proving Powder
Document 1796Leacock extols the benefits of proving public powder using his machine. He feels he deserves a contract and a patent for his new device.
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Type
Autograph Letter Signed
Description
Leacock extols the benefits of proving public powder using his machine. He feels he deserves a contract and a patent for his new device.
Date
03/07/1796
Author
Recipient
Sent from
Philadelphia
Document number
1796030780401
Page start
1
Notable persons
Samuel Hodgdon
Joseph Leacock
Mr. Russel
Dr. Priestly
Mr. Fox
Captain Stiles, Superintendant of the Magazine
Congress
State Legislature
Mr. Godfrey
Hadley
Notable locations
Philadelphia
Notable items
proving the public powder
pistol-proven
season of summer
season of winter
simple machine
springs
wheel
natural philosphy
cold or heat
springs
hot weather
salt peter
howitzer
eighteen pound ball
patent