When you have sewn the neckband on, it is pressed out so it almost looks as if the kimono is finished. The neckband facing lines the neckband.
When you have pressed under 1cm on the notched edge, put it right sides together on top of the neckband and stitch the outer edges together.
Press the facing out from the neckband, both part of the seam lying under the facing. To under stitch, sew close to the seam you just sewed, on the facing side. (This stops the facing from rolling out and spoiling your nice new neckband)
Now press the facing to the inside, under the neckband and stitch in place. (It is much easier to press when it is understitched)  It should match up nicely with the other side of the neckband.

@BrendaP  Oh no there aren't!   Haven't your read J.B.Priestley's 'The 31st of June'?  Wonderful fantasy story. I found it in my school library when I was 13, and loved it.

i reduce the seam allowances on both sleeve and armhole to 6mm.  They are much easier to ease together then. If the fabric is apt to fray then I cut them with the overlocker.

@Sandra  Many years ago, I had a Simplicity pattern for men's trousers that asked for an 11"zip.  I tried asking for one at the local haberdashery stall and got laughed at.  Glad to know I was not going crazy.  Actually, if you look at those old b&w films.....

1963  I was making shift dresses from a Simplicity pattern and Bushbaby fabric in dark colours.  Fisheye darts, long back zip and faced neck and armholes. Made them up in the afternoon and wore them that evening. I keep looking in vintage patterns but have never seen one I recognise.

Well done you two (but all of you really).  Keep on showing your makes.

This is truly the hardesr one ever. There is so much creativity here, so much diversity. I would have liked even more votes.

It is difficult to find a picture on facebook in an album, this should be a link, tell me if it works.   

  [ You are not allowed to view attachments ]  

Do you need to be subscribed to Facebook to see it? There was no other option to save in another format.
Off to do my ironing before Mount Washmore collapses onto me.  I'll check later to see if it is OK.

Link removed and pic attached to protect your privacy on Fb ... Imi xxx