couple of low grade coins I picked up on ebay.how would you grade them? http://www.ebay.com/itm/ESTATE-FIND-1827-AND-1830-MATRON-HEAD-LARGE-CENTS-/360680620571?nma=true&si=0hWzP7G1BTWGpy4N2fw1UWHXTQU%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557#ht_1938wt_910