I'm slow to pitch in because I'm not the seller, but this is a Standard 8 camera. Super 8 uses a cartridge, and has only one spindle. It looks like it takes AA cells loaded into the handle. That was an arrangement several other similar cameras used. Many Standard 8 cameras were clockwork/spring driven, but this model has no winding key, so must be electric. The Minolta movie cameras were expensive and highly regarded. I would be interested if it was in the UK.
Alex.