I want to say the second one (Saxe-Meininingen) not because I know much about it but because there are auction listings for it the items being in graded slabs with the information on it. The first link has nothing coming up.
I find this in Schön DM under Henneberg-Meiningen:
The symbol at the bottom of the reverse is different, but variations like that don't usually indicate a different issuer.
I can't find another listing for a 1787 or 1794 1 Kreuzer under any of the Sachsen branches.
On MA-Shops I find several of this type, and also another 1794 type: The listing with this image calls this a coin from “SACHSEN COBURG MEININGEN”, other names are used in other listings of this second type. (I didn't try to locate this type in KM, Schön DM, or Numista. I only searched 1794 in MA-Shops.)