4 book set J R R Tolkien 1977 the two towers hobbit fellowship of the ring king

This is a 4 book paperback set of J R R Tolkien in its box. They are from 1977 and in good shape. The titles are THE HOBBIT - THE TWO TOWERS - THE RETURN OF THE KING - THE FELLOWSHIP OF THE RING. There is a mark on the back binding of one of the books from a removed store sticker( shown in picture). Lots of reading!!!