I too doubt these are all proofs, but the crosshair alignment marks do not make a proof. Alignment marks indicate a proof, but there are many stages of proofing and multiple sheets were run (at least for the T's, provably) in different stages of proofing. Many proofs won't have the alignment marks. Usually it's something of an educated guess if a card is a proof or just incomplete from an unfinished sheet that got scrapped and backdoored, but we can produce proven proofs without crosshair alignment marks for the T cards.
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