California Penny Post Co., San Francisco, 2c Blue (34L1). Vertical pair with huge right sheet margin and large margins all around, unused (no gum), faint horizontal crease in top stamp, diagonal crease and thin in sheet margin, bottom stamp is sound, Extremely Fine appearance, we know of one other multiple of this rare stamp -- the block of six from the Golden collection and our 2012 Rarities sale, which at one point was joined to this pair -- ex Kuphal, signed Sloane

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