This version of the Base Set is not well known by the Pokemon community. It is unique because of the different copyright in the fine print: ©1999-2000 Wizards. Some believe this is an error that has occurred to every card. I am of a different opinion that these cards were only released in boxes made in the UK. I thought it would be beneficial to discuss it. I myself would like to know more about it. For example, does the Machamp card exist for this set, released in special theme decks? (Quick Edit 12-22-10 Update: Yes, see scan below!) This might bring new awareness to the history of Pokemon. Perhaps some of the experts here on Pokebeach have information concerning this set. This set is actually very very difficult to collect. I uploaded what I have on YouTube.
http://www.youtube.com/watch?v=nY14xkq9j_w
http://www.youtube.com/watch?v=nY14xkq9j_w