Japanese version of Aurora Robot kit

Lost in Space: hand-made Robot resin model kit.
Based on metal mould made by Aurora Plastic Model Kit.
Rare Japanese limited edition hand-made resin model kit within original Japanese cardboard box.
Note: This Japanese special resin model kit was based on the Aurora plastic model kit, and hand-made at that time.
Made in Japan in 1970s by a resin model kit company, manufacturer unknown.
Cardboard box size: approx 8.5" x 6.5" x 3.0" inches
Japanese insert memo is included.
eBay auction number 371925259100, ending 26th April 2017