San Luis Obispo
Actually there was a reason for this in the original game that they were numbered I think it was used in the trade portion of the game, but there might be other reasons. Is it specific skills that have the numbers or do same skills have different numbers.
And is the new version out!
It's not that they're numbered, it's the number of tokens provided with the game. For example, there may be 4 Wisdom skill tokens and only 3 Luck skill tokens.
My guess, much like the Destiny/Story tokens, is that they printed what they had room for on the token sheets.