AMPLIFIER 12 TRANSISTORES IN HARD METAL FRAME,WORKING,AS 200

HELLO ,IM TAKING THE FIRST STEPS IN RESTAURATION OLD THINGS,I CANT FIND ANY INFO ABOU THIS AMPLIFIER,PROBLABLY GERMAN OR FRENCH,
IKNOW THAT ONE TIME MY GRANDFATHER LEND IT TO THE VILLAGE PRISTE TO SAY SERMAN CONECTING A MICROFONE IN THE BACK AND 2 ENOURMOUS SPEAKERS FROM A CARROSSSEL CAUSE THE SMALL ONES WOULD EXPLODE.
THANK YOU FOR ANY COMENTARY WITH KNOW HOW
MARCO FISHERMAN COSTA

marcoluiscosta@gmail.com