A.
The Mar ing of words ?gLTD QTY?h in the 51st Edition indicates it is a LTD QTY qualified packaging just as same as the letters ?gUN in circle?h Mar ing for UN specification packaging. If these packaging specification Mar ing cannot be seen from the outside in the case of a closed overpack, you must not reproduce these packaging specification Mar ing but show the words OVERPACK on the surface of the overpack as stated in DGR 7.1.4.1. This means that all the packages contained in the overpack are all specification packagings or qualified LTD QTY packagings.

The new Diamond shaped Mar with the letter ?gY?h is exactly same as the former LTD QTY Mar ing, therefore must not be reproduced on the overpack. Simply show OVERPACK on the surface of the overpack to mean that all packages inside are qualified packagings.