The Bottom Line:

The flip side is a bit monotonous.

This very rare rare test pressing has a white label and is dated 17 September 1984.

The A-side has the regular mold number IS 209 A-2U-1-1.

The B-side is more interesting.
A typical test pressing would be one-sided, but this item has FB 7 encarved above a strikeout LPFB and three concentric end grooves.
The content is 3 minutes and 30 seconds of pure 796 Hz sinus wave. John does not sing on this instrumental...