NOS Kreisler Leather Watch Straps

I just ordered some straps described above. From a private seller on a different watch forum.

I may have jumped the gun though. I recall reading somewhere that there are a lot of fakes that are or were made in South America, Argentina comes to mind. And these ones have the stamping on the liner done with what is like gold foil from a leather press, I'm suspicious that's not how authentic ones were branded.

Anyone knowledgable about Kreisler straps please weigh in.

Don't know much about them, I think these are later Kreisler straps, 1980s maybe?

Thank you.