The t I've learned in school in the 90s is a single stroke.
Got taught this one in Sweden in the early 90s. Not too surprising though, as much of the Swedish school system used to be modeled on DDR...
I encountered that on exchange to a Gymnasium in the '90s. I liked it better than the Palmer I learned in the US.
Hey, that's the same one I was taught in the Netherlands in the late 80s! It seems to have been replaced with an English-style in recent decades though, is that the case in Germany as well?