An antique cotton flannel nightshirt, likely c1890s (though it could be 1900s) with pintucking on the shoulders and lace trim. It has an embroidered "B" near the hem in red. It has buttons on the top half of the front bodice.
Size: could work for small to large (most restrictive measurements are shoulder and armscye)
Bust: 47" (meant to drape smaller)
Waist: 52" (meant to drape smaller)
Length: 23.5"
Shoulder: 16.5-17"
Sleeve length: 23.5"
Armscye: 8" across
Condition: Very good to good. There are some dark spots near the hem and a tiny dark spot near the shoulder pin tucking (see last two photos). They are noticeable but because of the draping of the top, these don't really jump out at you.