Vintage TWA Airline Life Vest 1979’

Got this vintage TWA life vest from 1979. It's definitely a cool piece of airline history, has the old school yellow color and the 'Property of TWA' stamp right on the front. It's got the pull tabs and the little battery light thing still attached. Not sure if it actually works or holds air anymore so selling it more as a collectors item or for display. Has some wrinkles from being stored but looks pretty decent for its age. Great for anyone into aviation memorabilia.