late 70s knit BIRKIN mini dress

this killer mini dress looks like it was plucked from Jane Birkin's closet- mini length and great halter neckline with a sweet hook-latch closure

label: vintage designer label
tag size (vintage): n/a
material: none listed- fine knit- likely cotton possibly a cotton blend
length: 31" from neck
chest: 33-39"
waist: 32" + stretch
as is: minor patina near one arm- likely would lift in a wash. possibly pin holes or marks i missed