Imagine the complications had it been a trade. Let's say it was still in the original holder, and only 3 weeks had passed, but it had been a trade, and the other fellow then made another trade with someone else, so the first transaction could not be undone.......
If the buyer has some period of time to return the card, does the same apply to a trade, which would mean, in that case, the cards traded, on both sides, would need to be essentially frozen in the other guy's collection until the return time period expires?
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