Need Help Estimating Some German States Stamps

I found these on a website in my region and I wonder how much I should pay, or to be more precisly how much these stamps worth. I cant provide better photos, what you see is what I see as well. The things I know there are a lot of forgeries on stamps in German States also reprints.I emailed him and asked photos from the backside.





















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Most are from Thurn and Taxis (T&T), which is one of the more common German States. There aren't a lot of forgeries amongst T&T stamps, thankfully. In collections like these where you can't be assured of quality (can't check for thins, creases, tears, etc), I probably wouldn't bid more than a couple dollars a stamp or so. More than likely quality is somewhat mixed and I'd bid accordingly.

One of the more interesting pieces is the pair of stamps showing a palm tree. They were originally issued for German field troops in North Africa and they are fairly valuable stamps (low hundreds of dollars retail value) if genuine and in good condition. These are very heavily forged, however, and some of the forgeries are pretty good. Unless they come with an expert certificate, I would act under the assumption that they are forgeries, as that's what they most likely are.