- Polygon Window "Surfing On Sine Waves", Warp Records WARP LP7, double 12" LP at 33 RPM
- Gatefold sleeve with two white paper inners
- Side 1: Polygon Window, Audax Powder
- Side 2: Quoth, If It Really Is Me
- Side 3: Supremacy II, UT1 - dot
- Side 4: Quixote, Quino - phec
- Written, programmed and engineered by Richard D James at Llanneriog Studios, Cornwall
- Made in England
- Vinyl is Near Mint
- Sleeve has creasing, ring wear and a price sticker on the front
- Sold as shown in the photos

An early Warp Records release from Richard D James under his Polygon Window name, the second in the label's "Artificial Intelligence" series. The vinyl is Near Mint and the sleeve is Good, as shown in the photos.