90c Purple (218). Bottom
plate no. and imprint block of twelve half arrow at left, deep dark color,
original gum, lightly hinged on lefthand vertical pair hinge and one stamp
at top, nine stamps Mint N.H., tiny nick in edge of selvage at lower
left (not integral to the Scott-listed plate block of ten), couple tiny
wrinkles in center selvageVERY FINE AND EXTREMELY RARE PLATE NUMBER BLOCK OF THE 90-CENT 1888 ISSUE, OF WHICH ONLY FIVE OR SIX ARE BELIEVED TO EXIST.
Ex Eno and Wampler (where it realized $19,800 in Shreves 1998 sale). With 1980 P.F. certificate. Scott Retail as a plate no. block of ten and two singles (Image)