After coming across this pattern again and again on flickr and sewing sites I finally got hold of the pattern book it features in and made myself one. It's pattern B from Stylish Dress Book. A loose blouse with gathering around the neck. The sleeves are in two pieces with gathering at the middle and an elasticated cuff. I assumed the book would be in Japanese like other ones I have, but was pleasantly surprised to find it was in English. That saved a lot of head scratching and poring over a translation sheet. Still, with these Japanese sewing books you have to remember to add seam allowances and when tracing out the pattern for the lower sleeve, remember to add an extra 10cm to the width for the gathering.
I bought this fabric last year and was waiting for the right project. It's Peaceful Cooing by Nani Iro and it's a double gauze (two pieces of gauze like fabric invisibly stitched together). It's very soft and warm... would make a beautiful quilt.
I'm sure I'll be making this pattern again and again (and many others from the book). Next time though, I'll make the next size up (size 12) as it's a little tight round the shoulders, and I'll extend the sleeves two or three inches.
The first bit of sun we've seen in weeks today. Still freezing on the beach, so a very brief photo shoot! I surreptitiously snapped off some beautiful greengage blossom on our walk and brought it back to the house. Spring is here!