GetItemInfo on Guild Bank ??

[Nekudotayim]

I am able to access the guild bank within scripts but unable to get item names or links from items stored inside. The goal is an addon to retrieve multiple half full stacks from guild bank, merge them local in my backpack and put the stack back on the guild bank. Stacking works well with backbank and own bank, but guld bank wont cause of missing item infos.

Has anyone an idea ? Would appreciate any help. Thanks.