Here’s a few more.
1.4 - Pokemon Himitsu Card 151 - September 1997 Youchien (幼稚園) Magazine Appendix (Shogakukan)
Can be seen on the cover here; back image shows the year:
1.5 - Pokemon Ginpika Medal (Part 1) - September 2000 Youchien Magazine Appendix (Shogakukan)
I was unable to find an image of Part 1’s magazine, but Part 2 was released the following month, and looks like this:
1.6 - Pokemon Ginpika Medal 395 (Part 2) - September 2006 Youchien (幼稚園) Magazine Appendix (Shogakukan)
Documented in detail here: Sableguy Non-TCG Identifications - #36 by sableguy
1.7 - Pokemon Ginpika Medal - January 2019 Pokemon Fan Magazine Playtime (おあそび ) Book Appendix
Can be seen on the cover here; back image shows the year:
Here is a picture of all of them attached to the original board:
For the sake of completeness/future reference, I also found the origin of these medals below, though you don’t have it listed (and I do not know if there is a Scyther in this set):
(Edit: a picture of the entire set shows that there is a Scyther in this set, if you didn’t already know)
Pokemon Ginpika Himitsu Card - December 1999 Youchien (幼稚園) Magazine Appendix (Shogakukan)
The year and month can be seen on the back here:
Here is an image of the magazine itself:
