[AMBST95]

Although its trimmed, it's still a card. That'd be like destroying all cards with creases because you collect crease free cards. For a piece of cardboard to last 100 years +, why destroy it? There is still value in it. You said an abundant T206, but why should it be treated any different than any other card? One day, it may be the last remaining survivor. Would you destroy a 1/1 because some collector trimmed it 30 or 40 years ago? Just use full disclosure and sell if you don't want it. It's not a fake or reprint, it's just been trimmed to look nicer. No harm in that as long as there's transparency.