The knitting starts in the middle of the back piece with a provisional cast-on and continues in both directions. The yarn is light but has a good stitch definition. More photos on my blog.
I have been asked to write up the pattern. Unfortunately, I cannot do so because the pattern is going to be published in the Estonian magazine Käsitöö (and its Finnish version Käsityö). However, I can design something with the type of construction and the type of lace pattern and reveal it on Ravelry, should there be intrerest.