An electronics worker in California has created what he believes is the smallest ever version of the Declaration of Arbroath.
Andy Walker runs a business in Silicon Valley and has put the text of the famous Scottish document on a silicon chip in English and in Latin.
Each letter of the text measures about one-thousandth of a millimetre.
The Declaration of Arbroath was written on 6 April 1320 and urged the Pope to recognise Scottish independence.
'Piece of artwork'
Its most famous phrase is: "For, as long as but a hundred of us remain alive, never will we on any conditions be brought under English rule.
"It is in truth not for glory, nor riches, nor honours that we are fighting, but for freedom - for that alone, which no honest man gives up but with life itself."
A microscope is needed to read the text on the silicon chip.
Mr Walker was brought up in Blairgowrie and studied physics at Dundee University.
He chose the Declaration of Arbroath because of his links to Tayside and his love of history.
Mr Walker, who founded the Schiltron Corporation in California, said: "I designed the chip myself and there's usually at bit of space left on the chip to put some other stuff on.
"So I thought it would be nice to put on the Declaration of Arbroath, knowing that it would end up being the smallest ever version.
"It shows you how small things can get on silicon chips.
"It's a piece of artwork. It's got nothing really to do with the technology and the circuit but it's a piece that is added on to the chip just to see how small you can make text."