what a good thing to look out for these types of notes?
Experience comes with exposure to many genuine examples.
Authenticity determiners might be overall impact and quality of print and artwork.
>Quality is detail, fineness, clarity, colour & condition.
>Indicators are texture, alignment, size, thickness, type of paper/cloth, and if security features are present.
These banknotes have both overt and covert security.
In this case the quality is definitely a factor in my decision to raise this as suspicious - it has multiple issues.
I could write a mini novel here on this but forgers over the last century have utilised many tricks, some clever and imaginative - some not so.
Notes have been made by bleaching paper and reprinting - [watermark retained], also I know one example where the forger obtained a century old book and tore out the blank back page and used that that to print on to.
Fluorescent ink and multi-tone watermarks are difficult to counterfeit but it hasn't stopped people trying.
Whilst lithographic, intaglio etc print technologies were seldom available to forgers, they found somewhat convincing workarounds.
Australia had a large $10 note counterfeiting event back in 1966 and they were reasonably good fakes complete with watermark and metallic thread.https://www.theaustralian.com.au/ne...8d2dc3da07b5https://insidestory.org.au/for-the-love-of-money/
Even the new polymer notes have been forged by using sophisticated printers - it's an ongoing battle.
Texture cannot be visually gauged by a photograph, so in this case all I can do is look at obvious visual clues:
This is detail of a real Australian £5 note:
Firstly the boomerang and text fading in 'Australia' drew my attention, but it's more than that.
I'd like to see this note and have a close look.
For now I feel justified in creating this post.