I have a Victorian book on plants with good engravings, some hand painted. Disboarded but text-block is sound and, [as far as I can see without breaking the book] many of the plates are in good order. Question is - do I sell it as a breaker/binding copy or to break it myself and sell the plates individually. That would be out of my comfort zone but potentially profitable. I know good plates from this book are offered for sale in USA at
$40 + each. No telling if they achieve that, of course.