I think the intention here was to fly through the TCGs 30-year history, given the cards appeared in chronological order, beginning with that classic Chonkachu #58 and the infamous holo Charizard from the Base Set (although here shown as Glurak, its German name), before jumping to a French Palkia Lv
Instant result : usually in under 2 seconds, the card is identified with its set, number, language, and variant
Invasion of Zendikar has a 3 in a star in the bottom right of the text box, similar to a planeswalkers loyalty
When the shadowless sheets got sent off to get stamped with the 1st Ed symbols, they would have to lay each sheet almost perfectly on top of each other and there be just enough pressure for the 1st stamps to transfer slightly but not be totally removed
While we didn't have many wins where we just played a bunch of Goblins and then sacrificed them all for lethal Boggart Cursecrafter or Boggart Mischief triggers, we didn't need to