MECHANICAL WALKING SPACE MAN, VERSIONS - SYSY/YONEYA - JAPAN

AKA Clown Robot

These are presented in speculative production order. Timeline evidence is needed to confirm or disprove this.

Version 1
Spinning antenna, separate face parts, separate breastpart, separate plastic yellow hands, round red feet, hinged key, box version No 1 (the most expensive and complicated to make with spinning antenna, separate face parts and separate hands, hinged key and separately moving red shoes, also the box art seems to be more early)

Version 2
Antenna, printed face (with tab in mouth, looks liKe a tongue), tin arms/hands, red round feet, rigid key (?), box version No 1 (as version 1, but simplified arms)

Version 3
Red pip/knob on head, separate face parts, separate breast part, separate plastic yellow hands, round red feet, hinged key, box version No 2 (?) (same as 1 but the spinning antenna mechanism was replaced by a red knob)
followed by

Version 4
Red pip/knob on head, printed face and breastpart, tin arms/hands, round red feet, rigid key, box version No 2 (?) (same as 3 but separate hands are simplified to one tin part, also face and breastpart is now printed on the robot.

REPRODUCTION ALERT
There are good quality reproductions available. To identify an original look for the following:

SPACE MAN printed on the back not ATOMIC ROBOT or SPACE ROBOT
A fixed key, not a separate one.
SY logo on the side of the body
Full red eye dots, not semicircles.

Yoneya