Google Translate says:
Proletarsk is a font without any claim. Nothing special so ...
Well, so I had a simple block letters, something like a textbook, but not really anything to write books so, but somehow only as a kind of raw material for further ideas. But since then I ever had a font together, my question was, what do you call such a thing. Hmmm ... Simple Font, Simple Grotesque, 0815? Not fit me all that stuff, so I just typed in Wikipedia times on "random article" perhaps there as an idea ... Proletarsk, a short article on a not particularly important city with about 20 000 inhabitants in the Rostov Oblast, Russia. Proletarsk? It has something to do with proletarians, so ordinary workers. The fit to this simple but working ... A simple font knitted without the attitude of the bourgeoisie - Hey, the name fits. And since I had already brought me a name from the East, I still equal then the font to the Cyrillic alphabet added to the proletarians can Proletarsk what to do with the font ...

And since it is so: "Workers of all countries, unite!" Has not let me rest, and the font I added next to the Greek alphabet even hundreds accented letters and a number of special characters. As the Scripture has now over 880 glyphs! My new record!

<style type="text/css">
@font-face{
    font-family:"proletarsk-regular";
    src:url("https://fontsme.com/wp-data/p/759/759/file/proletarsk.regular.ttf") format("woff"),
    url("https://fontsme.com/wp-data/p/759/759/file/proletarsk.regular.ttf") format("opentype"),
    url("https://fontsme.com/wp-data/p/759/759/file/proletarsk.regular.ttf") format("truetype");
}
span.font0{font-family:"proletarsk-regular";font-size:55px;text-transform:none;}
</style>