Danish sleeve
with Beatles Danish discography on the back
.
Excists in four colour variants - purple, blue, green and grey. (se note
below)
The Purple copy is most common.
The white copy is a missprint.
Note: Some of the Beatles single picture sleeves in Denmark (and especially
in Norway and Sweden) came in a number of colour variations. Not because
of some marketing gimmick but because the printing works used the colour
that happend to be in the printing machine while printing new editions of
the sleeves.