
Originally Posted by
mknell
This is the answer I got
Dear polyhex_collectibles,
i opened 1 up its not stamped on the metal but on the plastic,
takara 1980-1982
- amelia0887
LOL it is a fake for sure if they have more than 1
Funny s**t! 
And just for a bit of amusement, I just messaged them about the same thing:
Hi,
If this item is mint and in a sealed box, how do you know that it is stamped on the metal components?
Cheers
I'll see what response I get.