Bilbo's Last Song Poster

For sale is an extremely rare and sought after poster. This is a fourth impression, printed in 1974.

Sadly it is not in the best condition (this is how I inherited it). There are clear folds in it and tape has been used to make it fit it's frame. There are also a couple of small tears and water stains to it.
I don't know how much it can be improved on and am just trying to preserve it as much as possible until it finds it's right home.

Bilbo’s Last Song was sung by Bilbo Baggins at the Grey Havens as Bilbo, Frodo and the Keepers of the Rings departed Middle-earth on September 21, 3021, marking the end of the Third Age. J.R.R. Tolkien wrote the poem after the completion of The Lord of the Rings, and it was discovered by his secretary Joy Hill in his library. Tolkien gave her the poem as a gift. It was first published as a poster illustrated by Pauline Baynes in 1974, the year after Tolkien’s death, and has been set to music by Welsh composer Donald Swann in 1978, and published in book format with new illustrations by Pauline Baynes in 1990.
Dimensions: 51cm x 75cm