This is definitely A VINTAGE sweater. The design itself seems to be a 50s style. The sweater itself at my best guess is 80s however, a lined small cardigan with pearl buttons in the style and construction of this sweater is for sure a 50s type. Definitely I would guess 50 years old approximately.
Check for a few other 50s sweaters I have!
Approximate measurements
Armpit to armpit 20”
Length 17”
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