Many thanks,
hopey, the second one looks more like it to me.
My
Aiwa CA-100H (Stereo 100 Carry Component System) accepts a plug the same as/similar to the second type in you pics. I have the original and correct mains lead with this plug and a second box of the same model is on it's way but it may or may not have the same connector or a standard figure of eight type connector.
Along the mains lead I already have is printed:
'JIS', '12-5500-1', 'wire mold';
The actual plug is marked:
'HIRAKAWA', 'IA-250V' (or 1A-250V), 'VMOI25A' (or VM0125A).
The two connection holes are spaced closer than a standard figure of eight plug type:
An extensive internet search has provided no results so far..