This is a collection of bootleg Inazuman figures from the 1970s. The sculpts are nearly identical, but in addition to paint variants (which is an interesting area in its own right), a variety of header cards were used.
Here are close-up looks at each figure and its header:
|The header says "Transparent Kaiju Series" which is a riff on the Bullmark Ultraman kaiju series.|
|"Kaiju New Series"|
|Now there's a random header design!|