Great vintage staple piece - a high waist denim wrap skirt. Adjustable belt gives this some wiggle room. Extra cute addition are the three apple patches clustered near hemline. 

Would fit best a modern Medium
~~~MEASUREMENTS~~~
Waist: 28" (but could be made smaller or larger due to adjustable belt)
Hips: open
Length: 25"

Note: Measurements were taken flat.  Waist measurement was multiplied by "2" to get the full circumference.

Please feel free to contact me with any questions, or for additional measurements.  Thanks for looking!