ROBOT BULLDOZER "ROBBY" - MARUSAN - JAPAN

A lithographed yellow tin bulldozer with a black robot holding a flag in his hand. ROBBY is marked on the engine cover and DIESEL on the sides.

Friction powered, the robot raises and lowers the flag in hand when pushed. 7" 17cm

Newspaper ads date this to August 1958.

There are two versions of this bulldozer both having the same box.
1 Yellow with a black robot. 2 Blue with a red robot