I would grade both of them with a "fine" grade. Here's a link that will give you a review of grading standards. http://mcphilatelics.com/education/stampterms/stampterms.html#center
Yes Makanudo, I have a couple of links for you. The first is the Precancel Stamp Society home page which will give you some good information and the second a precancel pdf. which gives a little more information from a precancel enthusiast. http://www.precancels.com/ http://precancels.com/wordpress/wp-content/uploads/2012/01/US_Precancels.pdf
