Fun fact: Chinese has separate "financial numerals" precisely to prevent one digit being changed to another, the way that could be easily done with regular numerals like turning 一 (1) into 三 (3) or 十 (10). A lot harder when they look like 壹, 叁, and 拾 instead.
Another fun fact: German registration plates use a font for which it is difficult to change one digit to another, for example by adding a bit of tape. The font is called FE-Schrift.
https://en.wikipedia.org/wiki/FE-Schrift
But they left S, X, and Z rotationally symmetric, so if you choose a non-palindrome vanity plate with only those characters, you can mount it upside-down and fool plate-readers.
But at least in Germany the plates always start with some letters and end in numbers. So mounting it upside down can't result in a valid plate.
Custom ("vanity") plates aren't allowed in Germany?
Interesting. I’ve heard that in the states, some police department plate lookup software will treat similar shapes the same. So if you search “B5-004” it will also match BS004, B5O04, etc
Interesting, is there a background to how they created the financial numerals? The standard ones seem obvious.