10c Map, Air Post (C7). Mint N.H., mathematically perfect centering, bright shade, Extremely Fine Gem, with 2010 P.S.E. certificate (Gem 100; SMQ $675.00), only one grades higher and three others share this desirable grade, we are at a loss as to the meager SMQ value of $675.00 -- the last two stamps graded 100 we sold realized $3,000 hammer (in 2016) and $1,600 hammer

Image Magnifier / Download

PSE Population Report

Market data

Power Search for Comparables