I presume that Scheider was sitting on a huge battery and inverter buried beneath him. Note also that the IIc LCD works very poorly in bright light according to most user reports.
The IIc LCD has popped up on eBay in the UK a couple of times in recent years. I suspect that, by its nature, the product will be a survivor. It was bought by enthusiasts (rather than companies) so a few will still lurk in attics, unmolested after the novelty wore off.