Interesting Drug Ltd. Edition Brown Sleeve Etched Disc Mispress 12" for sale

[seekastar]

I am interested in selling a copy of the Interesting Drug Ltd. Edition Brown Sleeve Etched Disc
ONE SIDED ETCHED DISC OF INTERESTING DRUG

Does not include SUCH A LITTLE THING MAKES SUCH A BIG DIFFERENCE

CATALOGUE NUMBER 12 POPS 1621

Mispress 12". Please send me your offers. Thanks.

 

[Not Right in the Head]

Forgive my ignorance, but what's mispressed about it? Because it doesn't include SALTMSABD? I thought that both songs were on the same side.