Fortunately I have only rarely encountered this problem, but it happened a few months ago in a DNW auction and it really made me think: DNW was auctioning away award documents and letters belonging to Field Marshal John French. Each award document and each letter was a separate lot. This could have been an obvious case of 'group splitting', but on the other hand - The items for auction was not his complete set, so even if they were one lot it wasn't the whole picture. - Should letters/documents be separated or not? The letters were not related to the award documents. - If yes, then what about a wooden box also belonging to him? Also part of the same lot? I hope you see what I mean... I'm just trying to point out that some cases are obvious whereas some other cases are not so clear... /Mike