Looks like the old Soviet pedal - Leader(1982)
[url="http://cheesyguitars.com/effect-leader1.html"]http://cheesyguitars.com/effect-leader1.html[/url]
[url="http://test.guitar-ussr.tu2.ru/effects/Lider.php"]http://test.guitar-ussr.tu2.ru/effects/Lider.php[/url]