Das Kapital

The copy of Das Kapital before conservation work
Charles Darwin's Unsolicited Das Kapital from Karl Marx Goes on Display
An intriguing copy of Karl Marx's work Das Kapital is returning to Down
1872 letter by Karl Marx
Marx, Tesla Among Autographs & Artifacts Up for Auction 
Boston — RR Auction's March Fine Autographs and Artifacts sale boasts a host of truly remarkable items.
AbeBooks' 2011 Most Expensive Sales