Pioneer N1x - 1983 - South America
Pioneer cassettes were only sold for a short amount of time and in limited outlets. They weren't seen in chain stores, or sold in packs of 10.
Pioneer are therefore one of the most consistently expensive blank cassette brands out there, especially this one, which was made for the South American market.
They were made by Denon.
However, that doesn't stop this being a superb Type 1 with a really well made and finished shell, which looks retro-cool.
But they are rare and expensive, and that's just the way it's going to be, unless someone uncovers a warehouse full of them...