Posted: Thu Dec 06, 2007 5:55 pm
Depending on where you live, there are several in major librarys like the New York Public Library, the British Library in London or the Austrian National Library in Vienna
E.W.Korngold Forums
https://korngold-society.org/site/phpBB3/
https://korngold-society.org/site/phpBB3/viewtopic.php?f=5&t=218