Hi, Nick-- I read through Bug 21629 and if I'm reading it correctly, it says that call numbers are sorted correctly using cn_sort, but Bug 17269 describes how call numbers are not sorted correctly using cn_sort, specifically the ones with colons in them in the G Library of Congress classification schedule. Has Bug 21629 been tested using LC call numbers with colons in them? Or is the problem of incorrect sorts of LC call numbers with colons in them unrelated? Thank you! Cheers, h2 ~~~~~~~~~~~~~~ Heather Hernandez Technical Services Librarian San Francisco Maritime National Historical Park Research Center 2 Marina Blvd., Bldg. E, 3rd floor, San Francisco, CA 94123-1284 415-561-7032, heather_hernandez@nps.gov Library catalog: http://keys.bywatersolutions.com/