Great Northwest 1820 Fort Snelling 1970, US 6 Cent Stamps, Corner Block Of 4

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Great Northwest 1820 Fort Snelling 1970, US 6 Cent Stamps, Corner Block Of 4:
$1.99

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Great Northwest 1820 Fort Snell 1970, US 6 cent stamps, upper left corner plate block of 4, nmnt-mnt. See pictures.

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Great Northwest 1820 Fort Snelling 1970, US 6 Cent Stamps, Corner Block Of 4:
$1.99