Question: What is the most expensive pen? 

Answer: quoted from first source:\n\nItalian pen manufacturer Montegrappa has unveiled what is reputed to be the world's most expensive pen. The "Peace Pen" is fashioned from platinum and comes with Baccarat crystal panels and an array of fine diamonds totalling more than 1,200.\n\nPriced at a staggering AED4.7 million (£679 000)....
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