Hello! I just wanted to post a link to a website which explains the different Yugo Mauser models fairly well (with pictures).
I bought a 24/47 a few weeks ago and tried to get as much info as possible on Yugo Mausers before buying. The website was quite helpful and it nicely explains the model differences. I am new to Yugo Mausers, so if you're in the same position as I am I would recommend this site.