Pics as displayed are about 8k each, or 128 to the MB, so the drive would have been capable of holding over 82,000 of them. Of course jpg format didn't come about until 30 years later...

Full size images are 1600 x 1061, so with 16 bit colour and no compression you'd be looking at about 25MB per image, or about 25 per drive. As a jpg they're about 600k each