A frog... so it's french?
Griffon, Motobécane, Terrot, San Sou Pap, Soyer, Rhonyx, Alcyon, Automoto, BCR, Benoit Gonin, BUT, Chevallier, Clement Garrard, Favor, Gauthier, Gillet, Gitane Testi, Gnome et Rhone, Magnat Debon, Mazoyer, MGC, Monet Goyon, Motosacoche, Peugeot?