I recognize the pattern. I'm pretty sure it's the same and very easy, and a quick knit to do. It's called the 'Envelope Afghan" because it was written and sent on the back of an envelope. It's pretty old. The only reason there's a link at all is because somebody designed some vertical stripes for it. It was given to me from someone on Ravelry.
It has only 3 rows that are repeated and two of those are just K across and P across. Only the first row has any directions and you'll need just K,P,yo and K2tog. skills to do it.
My link, VickiDesigns doesn't respond. Maybe somebody who's on Ravelry can put the link and pictures on for you if it's still available.
Happy knitting. Jean