WWII German Nautical Charts

[Pip23]

I picked up a large lot of old wwii charts and about 20 or 30 of them seem to be German. They have German stamps but also US stamps. Are these german charts or just copies?

https://imgur.com/a/lirESDc

[Pip23]

I have taken photos of all of them and put them on this link. I tried posting photos direct but for some reason they do not show up

https://imgur.com/a/fIBCXMv

[R Blum]

You need to be a paying Association member to add pictures.