Feel free to play along at home using these source images:
Known characteristics of Wash's aran:
- Large four strand plait on a flatter background stitch.
- One twist on each side, about a hand's breadth from the plait, just outside of the collar.
- This is framed by what looks like trinity/blackberry stitch.
- There is a space of that flat, plain stitch along the sides of the body of the sweater.
- The body of the sweater looks to be knit in the flat and seamed.
- The sleeves each have a single lattice on a flatter background stitch.
- The flat stitch and lattice are framed again by a thin braid, just like the body.
- The undersides of the sleeves are done in trinity/blackberry stitch.
- The collar is ribbed (almost certainly on smaller needles) and added later.
- The sleeves may be knit in the round.
- The sleeves look like they are probably set, not drop sleeves.
- The collar looks like it's folded over and stitched down instead of bound off at the top.
- That flat background stitch looks kind of purl-y to be stockinette, but I am having trouble with the idea that it's garter stitch. Could it just be an illusion because he's wearing a dark shirt underneath? Could it be the "wrong side" of the stockinette?
I'm thinking about trying my hand at putting together a pattern, but that's a bit above my present skill level. I figured I'd put this out there for discussion and tearing apart because a bunch of heads is better than one sometimes.