This chart is on page 240 of Latviesa Cimdi. The chart is 57 stitches wide. A similar chart with less repeats is found on page 242, and it is only 45 stitches wide. Note that a women’s medium mitten is generally listed as 4” wide, so the gauge for this chart is very small. It is suggested that you use at most light fingering weight yarn and needles between 1.0-2.0mm. The similar chart on p. 242 is from the district of Upesgriva.