The top left hand loop of the gallows characters is a 4. Who disagrees?

[Anton]

This is a tricky issue, by no means reduceable to plain image recognition.

A shape might have been designed in one way, then systematically carelessly inscribed in another way - similar but not exactly 1:1. For the inventor of the alphabet this might have been one and the same glyph. For us these introduce the question of difference.

So one needs to look where and how the underlying design betrays itself. Image recognition will tell nothing about that.