I need more information about this japanese stamp rally event

Hi everyone,
True to my quest of obtaining every Cyndaquil items, I stumbled on Ebay on this item:


Link to the item

I talked a bit with the vendor to get some informations, but he seemed to not really remember where it came from.

I did some digging on my end and could not find any more informations. I have very few infos:

  • It seems to date back to 2000
  • Here is a picture of the front of the flyer
  • Hitachi is an electronics manufacturer.
  • There was a contract between pokemon and hitachi spanning from 1999 to 2000.
  • In that time period Hitachi had nearly 5000 locations accross japan.
  • It seems to be a stamp rally in the style of the one run by JR East Planning.
  • From what I can translate, i seem to have found one of the prizes :

What I want to know:

  • What was the actual event.
  • Where did it took place?
  • What was the mechanic of that stamp rally?
  • Were there any other prizes related to it?
  • Are there any related items?
  • Is cyndaquil on any of those items?

If you guys know anything about this event, please let me know.

I bought it anyway, because i was too scared one of you was going to get my precious cyndaquil away from me.

it has been a week, i am bumping this thread