Significant improvements are likely to taper off because we are in the Cory period where far more care was taken. Some of his earlier catalog was before they found the film at Sparta and can be spruced - but anything from Sparta is as good as it gets.

I guess my point is that if it were up to me, I would hold back any Masterworks that were clearly below current standards. This book reminds me a lot of an old coin where you can't even read the year it was minted anymore.

By the same token, I'm probably one of a minority that would drop a book from the original sequence.