New Old Stock Brooks Brothers Blue University Stripe Supima Cotton Oxford Button Down Collar Shirt. 16.5-32 Slim Fit.  Made in USA.  Measures 24 inches across chest at armpit level.  Compare to a properly fitting shirt to predict fit.  This neck label is from about 10 or 15 years back.  The blue label color means Slim (Regent at the time) Fit.

Sharpie mark on neck label and on inside of collar pictured.

I combine shipping.