[1] It is a holograph manuscript (i.e., written in Coleridge's own hand), from some time between the poem's composition in 1797 and its publication in 1816.
In 1934, a copy of the poem written by Coleridge himself sometime before its publication in 1816 was discovered in a private library.
The so-called Crewe Manuscript was sent by Coleridge to his sister-in-law Mrs. Southey, who later gave it or sold it to a private autograph collector.
It was auctioned in 1859 and purchased by another autograph collector for the price of one pound fifteen pence.
[2] The Crewe Manuscript has a number of small changes, and three notable differences, from the final version published in 1816.