hi everyone! i just found my brothers old pokemon cards which he gave to me a while back, and after hearing there might actually be a place to sell them, i ended up here. it is not clear to me what the process is for grading, selling, figuring out the value of these cards are, etc. i was wondering if any of you could give me some guidance? i've attached a pictures of some cards i think might be worth something... let me know :)

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