Vintage 1960s Atomic Geometric Pattern Short Sleeve Blouse

Geometric squares of brown, tan and yellow on white fabric blouse has a nehru collar and plastic button front closure. Fabric content unknown, seems like cotton or cotton blend.
Good vintage condition, see photos.
Neck label: Lot Size 16
Bust: 40"
Hip: 46"
Shoulder (back): 15"
Length: 23" (neckline to hem)
Sleeve length: 13 1/4" (shoulder to cuff)

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