1-1/2c Brown, Coil (686). Mint N.H. joint line pair, beautiful margins and perfect centering, bright and crisp, Extremely Fine Gem, with 2008 P.S.E. certificate (Gem 100; SMQ $320.00 as 98, unlisted in 100 grade), the only No. 686 Mint N.H. joint line pair awarded this perfect grade