@ deCoppet
[#31]Hello deCoppet,
again a very attractive letter from your collection.
Your letter
[#29] was sent in closed bags through Bade, but Bade got only about 1 Kreuzer for their closed transit.
Thurn und Taxis (Frankfurt/Main) got 9 Kr. (30 Rappen/Centimes) from Switzerland. They paid internally 1 Kr. to Bade and kept 8 Kr. for themselves.
A very small postmark (17mm or so) should be a Distributions - Stempel from Frankfurt.
Your letter #31 was sent to Basel. Basel gave it to Bade for an open transit to other German States that had no contract with Switzerland. Bade got 9 Kreuzer, what you can see on the reverse side, written from Basel.
Baden kept those 9 Kr. an did not give them to Prussia.
Not so easy, but interesting relationships at those times.
Yours,
Ralph