It certainly seems that this started out as a basic silk charmeuse weave, then was finished in some way to produce the fuzzy feel. I'm guessing that sueded silk and peachskin (thanks to Nicole for the memory jog--I can never, ever remember the term, but I remember the feel!) silk might be the same, or very close. Peachskin isn't, as far as I've ever assumed, a normal or "natural" type of finish for silk--I've guessed it had something "done" to it to make it napped, but had no idea what that might have been.....
Can't help you with pricing--I do not have much luck at all with this type/age of dress.