This 12-page PDF contains three variants of the pattern charted in different width (64-68 st wide), with different thumb construction. There are two options with afterthought thumbs, and one with a side-thumb. You just have to decide which one you want to knit.
Pictures and knitting by Marit S (Mitt).
30 X 35 = 10 cm in stranded colorwork.
300 yards of Fingering weight