1c Green, Kansas City Roulette (408 var). Mint N.H. block of six with right selvage, imperforate between vertically where it shows absolutely no trace of the roulette wheel, Very Fine and choice, we have only encountered one other which is imperforate between in one direction (ex Hansen, Sale 963, lot 977), each stamp with impressed "WCM" or "ERM" initials in pencil, in December 1914, the Kansas City post office had an oversupply of imperforate stamps, originally intended for vending machines, the supply of stamps was rouletted with women's dressmaking tracing wheels, and official approval for their release was given by Washington, with 1994 P.F. certificate

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