I think it's important to stress that the BCS AU-50 designation immediately became invalid once the note was removed from its holder. As noted in fine print on the back of all BCS holders "If this holder is tampered with or damaged in any way the preceding opinion becomes invalid".
It's not inconceivable, in fact it's quite likely in my opinion, that the person who removed the note from the BCS holder made a few small "improvements" to the note, perhaps by erasing a small superficial blemish, lessening some of the handling marks using finger nail pressure through a sheet of paper, etc., etc. It is therefore not surprising, in my opinion, that a note could indeed "improve" from an AU-50 to an AU-55. It's true that all TPG companies should, and most probably do, maintain a database of notes that they have graded in the past but a responsible company would always regrade a resubmitted note starting from scratch (i.e., as if it were a brand new submission) and not merely reassign the previously assigned grade from their database because that could be particularly problematic if someone had mishandled the note in the intervening period and it had actually decreased in grade. To summarize, it's quite possible that the physical state (or at least the apparent physical state) of the note in question changed (improved in this case) between the time it was removed from the first BCS holder and the time it entered the second BCS holder.
« Last Edit: March 22, 2011, 08:57:54 pm by Ottawa »
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" Buy the very best notes that you can afford and keep them for at least 10 years. " (Richard D. Lockwood, private communication, 1978).