No misundestanding, I hope, I don't have the 7 Kr. and I want to buy it.
However, I once had it - cleaned, scratched etc. and since it was really unattractive, I sold it. I do not regret selling it since it was a hideous example of the coin, however it does amaze me that I haven't seen that coin since (7-8 years).
Now I assume you've got lots of Austrian/Hungarian coins I'd love to have. But I don't have really anything "first class" to offer. That is, unless you want pre-war Poland. I've got a lot of those..