Hello,
thank you for this opportunity!
I would much appreciate suggested reading about
1. postal conventions between Russia and Prussia in the late 1800's
2. postal routes between Russia - including Finland, Estonia, Latvia and Lithuania - and the transatlantic ports in England, Belgium, Holland and France (same period)

Are you reffering to the period before the founding of the UPU? Not exactly what I would call "late 1800s"...

I would suggest:

Kupec, Hans
Postgeschichte Kaiserreich Russland Vol.1 + 2 (in German)

I am referring to before and after the founding of the UPU.
What would YOU call "late 1800s"?
Thanks for the reference though.

Well, prussia became part of the German Empire in 1871. So there where no "prussian" treatys afterward.

The late 1800s? Starting 1880 or 1875 at best by my oppinion.

Having thus been lectured in the history of Germany I have to rephrase my question:
I am looking for literature on postal treaties between Russia and Prussia, and after1871 Germany, from around 1850 to ca 1924.
I am especially interested in what happened during the second half of the 19th century.
(I have very special reasons to chose the year 1924, but those reasons are of no relevance for this particular thread at this particular time)

Kupec, Hans
Postgeschichte Kaiserreich Russland Vol.1 + 2 (in German)
has been suggested, and I am grateful for that.
Any other suggestions?

I'm sorry that you feel lectured by me...
From your initial question I was thinking you were looking for informations concerning the period BEFORE founding of the German empire.

But as it seems, you don't like my answers, so I will not bother you anymore with further reading suggestions regarding the later periods. Maybe someone else of the 30+ users on this board will help you on that ...

Lacplesis:
I am sorry.
I could have been more precise from the beginning.
I am presently going through conventions between Russia/Finland and Sweden of 1868, 1880 and 1895.
I would like to make a comparative study of those texts with similar conventions and treaties between Russia and Preussia/Germany, as well as other countries, but I have problems finding out how many there were, from which years.
I have found articles by Charles Leonard in Jamsik 43/1998 (The Postal Treaty between Russia and Prussia 10/22 August 1865) and David Skipton in Rossica Journal 116/1991 (Convention between Russia and Prussia ... Steam Mail Packet...Stettin ...19 June(1 July) 1843)
This is a good beginnig, but I should greatly appreciate to know whether there are any more comprehensive lists or other articles.

I apologise to Laclepsis and to all members for my overreacting to Laclepsis' replies.
The irony is that I turned to this forum after having followed discussions on the BDPh forum, where the tone at times has been rather unpleasant - so much so, that it is uninviting.
I realise that my reactions might give a similar impression and I am very sorry for that.
Please accept my apologies!

Hi Irjam,

Depending on your knowledge in the German language, the book (or rather reprint) "Geschichte der Preussischen Post" by Heinrich von Stephan might be helpful. It's a first hand account of many treaties including Prussia/Russia. And just a little over 140 years old.

Best regards,

Lars

Thank you ever so much, Lars!
I have access to "Geschichte der Preussischen Post" by Heinrich von Stephan through our Postmuseum; I have not looked at it yet, but if it is written in a german fairly close to the german I learned in school many years ago I might be able to follow the relevant pages (armed with a dictionary, of course :-) ).
This means that I can cover the period up to ca 1850, and then try and find more texts for the following 75 years.
So - finding the literature seems to be as tricky as finding the best postal-historical items. But always worth the while.
Best regards,
Irjam