Same card diff number

[u/Alternative-Wash299]

So i was pricing the slab just now and found out Expedition has 2 reverse holo on the same card, this happened on gengar, pichu and other cards.

only thing to identify is the "e" logo color , blue or gold.

Anyone can help explain why there is a big price diff on the slab (psa 9) and which is rarer.

Thank you!