You might be able to look at books of Parrish's prints in Google Books.
I haven't had particularly high sales on the more recent bills, only a little over face value. I have several I'm going to put together, all from 1959, and I'll ask face value and shipping and let them go and see if anyone wants them. I'm tired of listing them individually. This will be the last hurrah on this, and then I'll move to a new type of item.