Fantastic Vintage Dress! Mam’selle by Betty Carol

Mamselle by Betty Carol 50s or 60s? Some wear on buttons, one button per sleeve Looks like someone added a hook and eye closure at some point but could be removed, missing par of hook and eye too In great condition! Wool No size listed but it’s fairly small - maybe a US 2 or 4 by today’s sizes Red black button up vintage military style retro