A copy of the Chaucer was sold at Heritage Auction Galleries on 7 April 2011: bookplate of Jean Hersholt, Beverly Hills, Calif.; unsigned full pumpkin morocco binding. (When it was auctioned by Parke-Bernet on 23 March 1954, it was still in the quarter-linen binding.)
The Heritage estimate was $60,000+; it sold for $44,812.50 (including buyer’s premium). We do not yet know the name of the new owner.
Link to Heritage website.
[Update, 6 February 2012: In a Foreword to the Parke-Bernet catalogue (1954), Hersholt described his collecting interests in some detail and the gradual dispersal of his collection. In the early 1950s, for example, he gave his Hans Christian Andersen, Sinclair Lewis, and Sir Hugh Walpole collections to the Library of Congress; part of his Danish library went to the University of California at Los Angeles; and his “collection of more than 600 different English editions of Hans Andersen’s works is now part of the Andersen Museum in the author’s birthplace, Odense, Denmark.”]
[Update, 7 June 2013: This copy is now being offered online by Buddenbrooks Books (Boston) for $93,500.]