Pattern is Japanese but fully charted using standard knitting and/or crochet symbols. The main pattern page is no longer live on Pierrot Yarn’s website, but the PDF file itself is. (Direct PDF link) The main pattern page was saved on the Internet Archive’s Wayback Machine, at the link shown below.

For help using Japanese charted patterns, please visit the Japanese knitting & crochet group.

Japanese version available here.

Tools/Materials:
Japanese size 12 knitting needles (5.7mm)

Gauge in pattern stitch is 16 stitches = 8cm and 21 rows = 10cm.