As he packed off the army knapsack used by renowned "wartime poet" Robert Graves, Robert Bertholf -- curator of the University at Buffalo Poetry and Rare Books Collection -- reflected on the value of the items he often sends to museums from around the world. The knapsack was sent last month to the Imperial War Museum in London, where it is part of the exhibition, "Anthem for Doomed Youth: Twelve Soldier Poets of the First World War." It is one of four major exhibits in which the UB Poetry and Rare Books Collection, which is quietly achieving international notoriety for its significance, is participating over the next few months.