Inflating your collection : 1 German Empire (Weimar Republic) m

By September 1923 the hyperinflation peaked, prices doubled nearly every week.
Yet another set of banknotes were introduced, mid September.
First came an 'old' 1922 note that was not issued in 1922.
The 'old' face value of 1,000 RM was worthless by now, so the note was overprinted with an 'upgrade' of 100,000,000 % to 1 Millarde Mark (US: 1 billion) or 1,000,000,000 RM.

Pick 113 a

Since this is a banknote that was prepared in 1922 already, it's printed on both sides.
Also the back has an overprint:

Pick 113 a - reverse

The note also comes with the flower watermark, but this one  only has an ornament in the right border.

3 new notes are issued on September 5, 10 and 15
First one, is another 1 Milliarde Reichsmark - note (US : 1 billion).
For this note, Pick only mentions one version, however I have two different versions:

Pick 114 two versions?

The top note, is printed on brown paper, the bottom note is printed on white paper.
Also in the serial letter/number there is a difference: series in black and serial number in red, or all in red.

two different serial letters/numbers

Second new issue, is a 5 Milliarden Mark-note (US : 5 billion) or 5,000,000,000.
One week later, a 10 Milliarden Mark-note is added (US : 10 billion) or 10,000,000,000

5 and 10 Milliarden Mark (US : 5 and 10 billions)

Both notes come with an ornament in the right border as watermark, or the blossom watermark as shown above.

to be continued ...