Thanks Micah, appreciate your taking the time to type a detailed response, that was an informative read. Off to the bin they go!

fake - Marcellus

Thanks Marcellus. Would you mind sharing a bit more? This was passed down to me by an older family friend, that's quite unfortunate.

These are using the thin stretch elliptical O logo so I can guess they're pretty old, but I've scoured the net and this site, and haven't been able to find a visual match. The model number is OA5006.