Here's a silky poly shirt by Kennington Ltd. California (Made in Korea). It features a Great Gatsby-style print with geometric accents in gray and rust over black.  Big butterfly collar with stays, tails, 2-button cuffs and all original black buttons.

 

Tag size is L 16 1/2, with actual measurements of 46" chest, 30" back length, 25" sleeve shoulder-to-cuff. Condition is flawless!