Soviet Icebreakers - 3.

Icebreaker "Yermak".
Ледокол "Ермак".
Jäälõhkuja "Jermak".

1959.

Ярославский СМХ ф-ка "Маяк".
Jaroslavli tikuvabrik "Majak" (Majakas).

* "Yermak" (1898-1963) was a Russian and later Soviet icebreaker. It was the first polar icebreaker in the world, having a strengthened hull shaped to ride over and crush pack ice. - Wikipedia