Collecting 1997-1999 Coro Coro Jumbo Promos

Toxic

TCG Player and Old Deck Collector
Member
Pictures: https://imgur.com/a/sHMeK

Digging through my collection of old cards I stumbled across these. All I could find out about them is that they are from old issues of the Japanese Coro Coro magazine. Does anyone know anything else about them, or their potential value? Is there anything I should look out for to make sure they are the real deal?
 

Blaine_gym_leader

Aspiring Trainer
Member
Hi, they are corocoro jumbo size promos. They are beautiful buy I don't think they will never gain a lot of value, cos the jumbo size makes them something out of the lines.
They would be a lot much worth if they were standard size.
 
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