RARE VINTAGE sz M menswear style style, 3 button tie back vest retro, Annie Hall

The coolest menswear patterned vest with three buttons and a tie back. adjustable with tie, but pit to pit measures approximately 18 inches and overall length from top to bottom is approximately 25 inches. RARE, VINTAGE, and beautiful colorations. This would look gorgeous with my Philip Lim cropped wool pants. I love this look for a menswear and Annie Hall styling