Luft/Navy swimmingvest,info wanted..

[Jos L C]

Hi,
I'm looking for pictures of flightcrew,pilots ..who are wearing the Navy type swimmingvest with closed front..
Some of these vests are Luftwaffe (LBA ) marked,but I've never seen a wartime picture.
Any info is welcome.

Jos.
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[Gene]

Never seen a wartime pic of one being worn either