Some more for the puzzle:
DL23F9D144724 SBD = 10/8, YES chrome surround
DH43H9D160652 SBD = 10/25, NO chrome surround
DL45G9R18696?, SBD = 11/29, NO chrome surround
DL46F9D212992 SBD = 1/8, NO chrome surround
DL27G9D213140 SBD = 1/??, NO chrome surround
DK41L9D218179 SBD = 1/15, NO chrome...