Hello Andy, To be honest I do not have a clue what it is you require. However here`s some images of the inside of a Flak Binoculars Transit Case (Flakfernrohr Transport) Perhaps you can find what you need from these? Kyle German WWII Kriegsmarine Flak 10 x 80 Binocular Optics Set
Hi Kyle - I need that card insert showing contents of box that fits into the small metal frame - it's in your last photo. Thanks Andy
Morning Andy, Sorry cannot help you there as I do not have the actual card ,perhaps from the photographs you can make a decent `reproduction` Here`s another image;- Kyle