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Colorado
Denver Colo. New Rocky Mountain National Park Opens May 1st 1917 1917 International Machine Type D42 Postal Stationery Envelope Corner card The First National Bank Crease.
Denver county.
CO170807
$10.00
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Colorado
Denver, Colo. New Rocky Mountain National Park Opens May-1st 1917 Slogan International Machine Type D42 PC.
Denver county.
CO170807A
$10.00
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Colorado
Denver, Colo. New Rocky Mountain National Park Opens May-1st 1917 Slogan 1917 International Machine Type D42 PPC (Gas and Electric Building at Night, Denver, Colo. Best Lighted Building in the World.) Edge wear.
Denver county.
CO170909
$10.00
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Colorado
Denver, Colo. New Rocky Mountain National Park Opens May-1st 1917 Slogan 1917 International Machine Type D42 PC.
Denver county.
CO171003
$10.00
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Colorado
Denver, Colo. New Rocky Mountain National Park Opens May-1st 1917 Slogan 1917 International Machine Type D42 PC.
Denver county.
CO171019
$10.00
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Colorado
Denver, Colo. 1917 International Machine Type Buy Now U.S. Government Bonds 2nd Liberty Loan PC.
Denver county.
CO171023
$10.00
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Colorado
Wheat Ridge 1917 4b-bar PC.
Jefferson county.
CO171123
$10.00
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Colorado
Greenwood 1917 4b-bar 1872-1918 PC.
Custer county.
CO171222
$35.00
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Colorado
Carbondale 1918 duplex Postal Card.
Garfield county.
CO180225
$10.00
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Colorado
Denver, Colo. 1918 International Machine Type Buy Now U.S. Government Bonds 3rd Liberty Loan PC.
Denver county.
CO180412
$10.00
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Colorado
Moraine Park 1918 4a-bar 1902-1921 PC.
Larimer county.
CO180804
$15.00
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Colorado
Moraine Park 1918 4a-bar 1902-1921 PPC (Balance Rock, Moraine Park, Colo.).
Larimer county.
CO180808
$15.00
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Colorado
Pueblo, Colo. 1918 American Flag Type A14dd PC A.R.C. Canteen Sacramento achet.
Pueblo county.
CO180815
$10.00
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Colorado
Brandon 1918 4b-bar 1903-1966 PC.
Kiowa county.
CO180819
$10.00
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Colorado
Pueblo, Colo. 1918 American Flag Type A14 PPC (Centenial High School, Pueblo, Colo.).
Pueblo county.
CO180827
$10.00
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Colorado
Rush 1918 4b-bar PC.
El Paso county.
CO180902
$10.00
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Colorado
Brighton 1919 duplex.
Adams county.
CO190412
$10.00
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Colorado
Colorado Springs, Colo. Be Careful with Fire in the Mountains 1919 Universal Machine Type DT400 Tear at right, small piece missing at bottom and bit reduced at top.
El Paso county.
CO190712
$10.00
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Colorado
Denver, Colo. Be Careful with Fires in the Mountains Slogan 1919 Universal Machine Type DT400 PPC (Elks' Home, Colorado Springs, Colo.).
Denver county.
CO190720
$15.00
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Colorado
Moraine Park 1919 4a-bar 1902-1921 PC.
Larimer county.
CO190723
$15.00
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