To be fair, radars are much easier to obtain when there's only five digits. You only need two digits to match, so that's about a 1 in 100 chance, compared to 1 in 1000 for six or seven digits.
I've wanted an example of a Reichsbahn note for a while now, ever since I first found out about them. Unlike most Notgeld notes, these notes, having been issued by a national government agency, are actually listed in the "special issues" Pick catalogue. Haven't seen any for sale here in Australia.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis