Description: Photos of Brunel patent (1799) Polygraph courtesy Science Museum London  (No 556) 
Origin: UK;  Circa: 1805; Materials:  Ebony, brass, steel.

I have documented an original box for the Polygraph  (No 129) at:  http://hygra.com/box/873WB-Brunel-patent-polygraph/  It is the only so-far known box with secret drawers:

Brunel's writing machine was first patented in the USA in 1799; three months later he was granted a UK patent, which was published in:

The Repertory of Arts, Manufactures, and Agriculture, Consisting of Original Communications, Specifications of Patent Inventions, Practical and Interesting Papers, Selected from the Philosophical Transactions and Scientific Journals of All Nations ...

https://books.google.co.uk/books/reader?id=NaYoAQAAMAA
J&printsec=frontcover&output=reader&pg=GBS.PA146
 

The machines were manufactured and sold by J. H. Farthing, Cornhill, London. 

See  "Specification of the Patent granted to Mr. MARC ISAMBARD BRUNEL, of Canterbury.-Place, in the Parish of St. Mary, Lambeth in the County of Surrey, Gentleman ; for his Invention of a certain new and useful Writing and Drawing Machine, by which two or more Writings or Drawings, resembling each other may be made by the fame Person at the same Time. Dated April 11, 1799" 

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