coinworld question PF or PR???

While looking at an advertisement in the latest coinworld, I noticed two Washington .25's listed for sale. On was listed as PR- and the other was listed as PF-. What is the difference?
0
Comments
-Paul
what about EF vs XF?
(it must need Xtra Xtremely close Xamination to determine the grade)
Liberty: Parent of Science & Industry
<< <i>PR means poor? what does PO mean? >>
Post Office.
<< <i>what about EF vs XF? >>
Always X.