Soviet socialist song "Steam Locomotive 515 Щ"

Sometimes in an old archives you find very unusual things such as this is the cover for the song "Steam locomotive 515"

Of course, I understand that in the times of the Soviet Union and in the initial period of the formation of this state various things happened, but what the song was written specifically for a certain type of steam locomotive I couldn’t even imagine.

Now I am very puzzled by the search for the text of this song, but for now I can’t find it anywhere...

Понимаю, что ранние годы СССР-это период необычный, но вот то, что напишут песню, посвященную локомотиву определенной модели, и представить себе не мог. Теперь вот озадачен поиском текста этого индустриального шедевра