An envelope signed on rear side by 
Paul McCartney and George Harrison.

Paul and George have signed in blue ball point pen.
 
The autographs were obtained after The Beatles 
concert in Stockholm / Sweden 26. October 1963.
 
This signed item comes with a LOA(Letter of Authenticity)
and a money-back warranty from the Bavarian Beatles Store.
 
The envelope masures:
13.7cm x 9.4cm(5.4 inches x 3.7 inches)

The condition is very good+.