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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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Colorado
Moraine Park 1919 4a-bar 1902-1921 PC.
Larimer county.
CO190723A
$15.00
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Colorado
Denver Colo. Be Careful With Fire in the Mountains 1919 Universal Machine Type DT1L400 PC Some edge wear.
Denver county.
CO190805
$10.00
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Colorado
Denver, Colo. Be Careful with Fire in the Mountains Slogan 1919 Universal Machine Type DT400 PPC (Typical Western Ranch).
Denver county.
CO190812
$15.00
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Colorado
Denver, Colo. Be Careful With Fire in the Mountains 1919 Universal Machine Type DT1-400.15 PC.
Denver county.
CO190816
$10.00
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Colorado
Colorado Springs, Colo. Be Careful With Fore In The Mountains Universal Machine Type DT400.15 PC.
El Paso county.
CO190901
$10.00
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Colorado
Denver Colo. Vacation Outdoors in Colorado's National Forests Slogan 1919 Universal Machine Type DT1L400 PC.
Denver county.
CO190929
$10.00
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Colorado
Denver c1920 machine Printed Advertising Strange�Someone Didn't Think of This Before Printed Matter.
Denver county.
CO200000
$10.00
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Colorado
Ouray c1920 boxed sl Postal Stationery Envelope.
Ouray county.
CO200000A
$10.00
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Colorado
Malta 1920 4b-bar 1890-1955 PC Crease.
Lake county.
CO200323
$10.00
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Colorado
Denver Colo. Join the Navy Training-Travel 1920 Universal Machine Type DT2L400.
Denver county.
CO200430
$10.00
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Colorado
Denver Colo. Join the Navy Training-Travel 1920 Universal Machine Type DT2L400 Bit reduced at top.
Denver county.
CO200505
$10.00
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Colorado
Denver, Colo. Join the Navy Training-Travel Slogan 1920 Universal Machine Type DT2L400.
Denver county.
CO200607
$10.00
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Colorado
Hawthorne c1920 4b-bar 1906-1930 PC Small tear at top and small crease at top left.
Boulder county.
CO200717
$10.00
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Colorado
Pine 1921 4b-bar 1919-1960 PC.
Jefferson county.
CO210328
$10.00
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Colorado
Colorado Springs, Colo. Fires Destroy Forests Be Careful 1921 Universal Machine Type CT-400.23 PC.
El Paso county.
CO210527
$10.00
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Colorado
Lamar, Colo. 1921 American Flag Type A14.
Prowers county.
CO210815
$10.00
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Colorado
Malta 1922 4b-bar 1890-1955 PC Small stain at left.
Lake county.
CO220427
$10.00
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Colorado
Tennessee Pass 1922 4c-bar 1912-1960 PPC (Going Through the Royal Gorge, Colo.).
Lake county.
CO220916A
$10.00
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Colorado
Colorado Springs, Colo. 1922 Universal Machine Type National Cancer Week PC.
El Paso county.
CO220921
$10.00
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Colorado
Denver Colo. National Cancer Week Nov. 12-20 1922 Universal Machine Type BT1L400 PC.
Denver county.
CO221011
$10.00
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