Worth My Deutsche Reich And Bayern Postage Stamps Collection?

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I want to sell my collection of stamps Deutsche Reich and Bayern on the website kleinanzeigen.de. (please see images below)

Since I do not understand the worth of these postal stamps, can anybody advise me.

What price could I ask for for this collection?
I want to mention, there I do not sell as well at auctions, I want to set a fixed price.
Thanks advance and regards

Hi; Have to check the Hindenburg stamps and their Watermarks...

You know, you can and should do this yourself. Since they are your stamps, you are more motivated to check such a large amount of stamps. If you go to www.stampworld.com you can find most if not all of these.

Peter

Lots of incomplete sets of common stamps, lower denominations, mixed condition. Since you're selling on a German site, if you get 10-15 Euros for the lot, be thankful.

It isn't really possible to give accurate drive-by assessments.

Sometimes the differences between a two-cent stamp and a $20 stamp aren't easily detectable...sometimes the difference between a $20 stamp and a $600 stamp can't be identified by a scan, at all.

Then you have specialist matters, like desirable postmarks/cancels, watermarks, flaws or perforations.

Often, out-of-the-ordinary values are only readily recognizable by specialists, and you only become a specialist by spending a lot of time looking at stamps, and studying resources.

So, a generalized assessment of "they look ordinary" is what it is. They look ordinary...but one or another might not be ordinary. That's just the way it is with stamps. Almost all of them are ordinary. A tiny percentage are not.

A treasure that a seller overlooked could be discovered by someone who has taken the time to get a specialized education. That's life. Someone else always knows more...

Hi @perf12
I suppose I should have some special device-instrument to see the watermark? I do not have that.
btw: I will ask Google or some another "Search Engine" for that.
Thank you for your reply.
Best regards

Hi @Petert4522
That will be probably the best way for me. I will look at the relevant website.
Thank you for your reply.
Best regards

Hi @Jenny2U
Wow, I did not know so little worth.
I will still think about it and then I will decide.
Thank you for your reply.
Best regards

Hi @Cjd
Uhhh, I did not know that is it a higher science.
It will probably be best to sell all by thematic.
Thank you for your reply.
Best regards