There are bonus cards exclusive to Japanese card shops
It went on to be included in all the other core video games of Gens 6 and 7Omega Ruby and Ultra Sapphire, Sun and Moon, Ultra Sun and Ultra Moon, and Lets Go, Pikachu and Lets Go, Eevee before being discontinued when the eighth generation began to make way for the Dynamax and Gigantamax mechanics
Not surprisingly, some of that hobby swagger remains
If you can find one, a conservative valuation of Torkelsons 1977 Mexican card is at least $500
This indicates the card is not in a set, and has only been made as a promotional extra
Collectors value not only their visual beauty but also their historical significance and collectible value