Banknote Information on the German 500 000 000 Mark!

I need some information on the German 500 000 000 Mark Banknote!

Research here for more info - https://en.numista.com/catalogue/index.php?r=500+000+000+Mark+&ct=banknote&im1=&im2=&tbb=y&tbc=y&tbl=y&tbt=y&cat=y&ru=&ca=931&no=&v=&i=&b=&ie=&u=&a=&dg=&m=&f=&t=&t2=&mt=&g=&se=&d=&c=&wi=&sw= 

It is like these notes: https://colnect.com/en/banknotes/list/variant/43555 , but is not the exact same variant of any. You will need a catalogue that it is listed in to find its reference number; I would recommend an Arnold Keller catalogue on German Notgeld, it seems to be the most commonly used one for these types of notes, though I personally do not own a copy.

It belongs to this issuer here on Numista: https://en.numista.com/catalogue/index.php?e=solingen_notgeld&r=&ct=banknote&im1=&im2=&tbb=y&tbc=y&tbl=y&tbt=y&cat=y&ru=&ca=931&no=&v=&i=&b=&ie=&u=&a=&dg=&m=&f=&t=&t2=&mt=&g=&se=&d=&c=&wi=&sw= , however, it does not exist yet in the Numista catalogue, so you will need to add it.