This is a Regency era (1795-1815) chemise, made from white cotton broadcloth. It was sewed completely by machine. It was made from the Sense and Sensibility Regency Undergarments Pattern.
The sleeves have a gusset at the armpit, practical for this time period.
The neckline closes with a ribbon drawstring and casing. I had trouble with it and it doesn't look that pretty :) I also had issues with the initial fit because it ran really big. The photos don't show it well, but I had to make the whole chemise narrower with a set of flat felled seams running down the front.
I'd love to make a better chemise eventually, but I have too much to sew!