I, too, have a vinyl picture disc.  This is a souvenir of the Hannover
organ festival and was a private production by Peter Schuhknecht.  Peter
was a well known organ enthusiast who owned a radio and tv dealership
in Hannover and also organised the Hannover organ festival.

My disc has different pictures to the one sent in by Craig Smith and is
an earlier one at Series 10.  I remember buying it from Peter himself
in 1980 when he came over to GB to attend the MBSGB meeting in Leeds
where the society held the country's first ever street organ festival.
I remember being impressed with the organ he brought which was a
45 keyless Hofbauer roll player.  In fact, his friend brought a second
of the same design and they played duets, well before the days of
micro-chip organs and radio control when anyone with no skill whatsoever
can do the same trick.

Best regards from GB,
Nicholas Simons.