Vintage Men's Navy "Cracker Jack" uniform top 40" chest

Vintage Men's Navy "CrackerJack" Uniform Top, approx 40' chest Previously owned and used, some threads from unclipped seams Black 100 per cent Wool Dry clean only Outer and inner pockets (Inner with button closure) About 40' chest, about 23" length Button cuffs Origin Story: Purchased at DAV store in San Diego approximately 1980. Worn a few times in the 80's. Stored inside ever since. This appears to be a "surplus" DAV, cannot find evidence of removed patches, some untrimmed threads. Thanks for checking out my Poshmark closet.