Good rare stamp.

Together with Joseph Mohr, a Catholic priest who wrote the original German lyrics, Gruber composed the music for the Christmas carol Silent Night. On Christmas Eve of 1818, Mohr, an assistant pastor at St Nicholas, showed Gruber a six-stanza poem he had written in 1816. He asked Gruber to set the poem to music. The church organ had broken down so Gruber produced a melody with guitar arrangement for the poem. The two men sang Stille Nacht for the first time at Christmas Mass in St Nicholas Church while Mohr played guitar and the choir repeated the last two lines of each verse. For a long time many thought that Silent Night was written by Haydn, Mozart or Beethoven.