A unique artifact …

… Tennyson and The Golden Treasury | Essays in Criticism | Oxford Academic. (Hat tip, Dave Lull.)

Tennyson, too, attempted to improve these poems; 6 but there is no evidence that his changes survived, were serious, or were in any way dissimilar to his general habits of reading. His attempt, elsewhere, to ‘improve’ Wordsworth’s ‘Tintern Abbey’ has been described by Stephen Gill as ‘one of the most audacious assaults ever by one great poet on another’. 7 Yet Tennyson’s annotations of his books confirm that this active process of reading and revision was a natural part of the way the poet scanned.

Methinks trying to improve “Tintern Abbey” is a rather cheeky undertaking.