Another banknote without any reference number. Help need again please [solved]

This is another banknote from the same pile, and cannot find any reference to it.
It is from Linz, but that is as far as I have, except it seems to be something to do with a cinema.
Any ideas please?

Privatnotgeldschein, 50 Heller, " Kolosseum ", Print: V. Langhammer in Linz, Kodnar/Künster Nr: 546 II
source eBay

there seems to be three different types
https://www.gap-banknoten.de/search?sSearch=linz%2Bkolosseum%2B50h&p=1

Any idea what the differences are.
They look identical

looks like different colors

Yes, I see it now. The centre circle with the portrait are indeed different colours. I will check mine and see which one it is.
You sir, are an encyclopedia of knowledge.
Your help once again is much appreciated. My database will be updated tomorrow.

Thanks, but it took just 20 sec of googleing

I spent over an hour and found nothing.

Interesting... haven’t seen anything like this before. Thanks for starting this thread... now we know a lot about these wonderful notes from Austria.. Cheers !

sarikanair,
If you look at the Colnect website, you will find, listed under banknotes, a list of countries.
If you click onto Austrian Notgeld, there are over 6,700 listed. There are also over 19,000 German Notgeld banknotes listed.
Have fun.
They are not just banknotes, but works of art

COINMAN1,
That’s great! Will surely check them out... thanks again! :)