[nothernug]

I'm no "expert" by any means but believe I can help.

That's no 'funny business' at all. The model 24/47 is a refurbished model 1924. Part of the refurbishment program involved scrubbing original manufacture markings. Sometimes, they didn't quite eradicate those markings completely leaving visible traces of those. That's what you're seeing there. Pre Nazi occupation marking from original manufacture. The trace I can make out in the picture would have been the Cyrillic for "Kingdom of Yugoslavia" stamping used from 1930-41.

As for a font database, there's no such thing that I know of though admittedly would be a wonderful thing. Unfortunately, I have concentrated my primary research on other particulars. Fortunately, some others have paid particular interest to that aspect of these rifles and maybe might take the hint?

 

[nothernug]

Nuthernug is right on. A lot of the 24/47s if not all ( I'm leaning towards all )are parts guns.

Umm no, not that. That's how the Russians did things but not the Yugos. To much wasted effort. The Yugos surveyed each weapon only replacing or repairing as needed. Wepons beyond practical repair were stripped for parts. But rendering everything to the parts bins just to build parts guns, no.