Scott # RB3TCi1871 3c Proprietary Revenue Trial Color Plate Proof on Bond Imprint Block of Ten1871 3c ultramarine & black Proprietary Revenue trial color plate proof on bond paper. Mint never-hinged bottom imprint block of ten. Very few Proprietary trial color proof imprint blocks of any denomination are known to exist. The example offered here is particularly nice due to its sound condition and pristine mint never-hinged gum. Certificate: PF Certificate Certificate Date: 2007 Country: United States ID: 001023 Our Price: $1,500.00 Adding this item to your shopping cart will qualify your order for the Mystic Rare Stamps time payment program. To see how low your monthly payments could be, add this item to your shopping cart. Of course, there is no obligation. You can remove the item from your cart at any time.
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