unmounted mint Block of Four 2c Pink type I (248), mint block of four, beautifully centered, fresh bright color on very fresh crisp paper, full o.g. (usual tiny natural gum skips), never hinged, otherwise very fine-extremely fine block, with 1986 P.F. certificate, one stamp has a small natural paper wrinkle (which is erroneously called 'a small crease at top left' on the certificate - as is their current policy regarding natural paper wrinkles), Scott retail $150.00+