it's for one of the front pieces.
let me get this straight then:
i'm on the RS with 19 sts
dec st at armhole edge on next 3 rows = knit dec, purl dec, knit dec,
then on 1 foll alt rows and at the same time dec 1 st at neck edge as set on 1st = then i purl one without dec, knit dec 1 on neck and arm end
and 1 foll 4th rows. 13 sts = purl no dec, knit no dec, purl no dec, knit dec only one (arm?)
dec 1 st at neck edge only on 4th and every foll 4th row to 9 sts = purl no dec, knit no dec, purl no dec, knit dec at neck only; then purl-knit-purl no dec, knit dec at neck until 9 sts remain;
is that right? i'm sure it's very straightforward, but the way it's written out is such a headache...