The Murray's? Kept pretty well- pure rag content paper, thick borad binding. We gave it to the Art Gallery after Dad died, because no one has room for folio-volumed dictionaries. The big thick one didn't last: cheap paper cheaply held together. What fell apart was the suede binding of the Enc.brit: shed all over the place. (My own copy of the Enc.brit, present from an aged neighbour twenty years ago, is now doing the same with its regular leather binding. The onionskin however is perfectly happy.)