The most expensive one was a rare 1913 Case Model 30-60. There exist only five of those in the entire world. It was sold at an auction for US$400,000.
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His paintings have been sold for millions to private collectors, "Sunflowers and "starry nights" are the most expensive.
Used tractor parts are worth upwards of hundreds of dollars depending on the parts being sold. Engines will be the most expensive parts. One can make these trades on these sites: Market Book, Worthington Parts, SSB Tractor, Yesterday's Tractors.
The most expensive watch sold by tag heuer is the monaco v4 at the price of 80,000 it the most expensive watch sold by them there are several different kinds.
The most expensive desk ever sold was a custom desk made by Parnian. This desk sold for over 200,000 dollars.
Donald MacPherson's set sold for £30 000 after he died, that's the most expensive as far as I know
It was sold in New York for $5,682,500.
The most expensive American car was the Cadillac or Lincoln which sold for over $5,000.
The most expensive car being manufactured and sold today is the Bugatti Veyrnon.
A green 1962 Ferrari 250 GTO built for Sir Stirling Moss sold for $35 million in 2012, making it the most expensive car ever sold.
The most expensive single piece of real estate sold in the USA this year was the Hawaiian island of Lanai which sold for around $500,000,000 dollars.
It was sold in the UK and it cost £70 a cup.