Vintage, plaid mini dress from the 1960s-70s. It can be a jumper or a long vest. Made by Country Set. It is a black, red, green and yellow plaid. The darts are a design element as well as a fit element and end well above the bust point. It is nipped in at the waist with a dart in the back from the hem rather than a center back seam. The face of the fabric is a loose weave bonded onto a white nylon type lining. There is a black facing around the neck and armholes. It has simple, silver color buttons that do have chips of the paint on edges. Please see the last photo.
Size and measurements:
Size: 9-10 (1970s sizing)
Bust: 34″ (Underarm to underarm is 17″ across the front)
Hip: Approximately 37″ around
Length from center back: 28″
It has a 2″ hem.