Tekkaman by Nakajima

Tekkaman is from the japanese anime Tekkaman: The Space Knight,
a Tatsunoko Productions from 1975.
This is the "small size"  version of Nakajima's Tekkaman

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Detail shot of the box.

"Tekkaman family foto" - Nakajima standard size,
Nakajima mini size & Grip Tekkaman