My dupes, as of 02/18/2013, are:

CSPs
Aheka (T-1) (x2)
Alameda (s-1b)
Algonquin (S-1b)
Aloha (S-1e)
Baden-Powell (S-10) (x2)
Baltimore Area (T-4)
Baltimore Are (S-10)
Black Warrior (T-1b)
Blackhawk Area (T-8)
Blue Ridge (S-3a)
Boulder Dam Area (T-1e)
Bucks County (S-48b)
Caddo Area (S-3a)
Cascade Pacific (T-4a)
Central Florida (T-1)
Chester County (S-4c)
Chicago Area (S-4a)
Chief Logan (S-1b)
Chief Okemos (S-3)
Chief Seattle (S-2a)
Chief Seattle (S-3b)
Clinton Valley (S-8)
Colonial Virginia (S-1)
Connecticut Rivers (S-1a)
Connecticut Yankee (S-2)
Conquistador (S-2b)
Conquistador (S-2c)
Cradle of Liberty (S-2a)
Crater Lake (S-8b)
French Creek (S-6b)
Georgia-Carolina (S-??) Current Issue
Grand Canyon (S-3)
Grand Teton (S-8)
Great Rivers (T-3f)
Great Salt Lake (S-8) (x2)
Great Salt Plains (S-2)
Great Smoky Mountain (S-2a)
Great Smoky Mountain (S-2c) (x3)
Great Trail (S-10b) (x2)
Great Western (T-4)
Greater New York Queens (S-3)
Greater Niagara Frontier (S-5)
Greater St Louis Area (S-1) (x2)
Green Mountain (T-4b)
Greenwich S-1a)
Gulf Coast - FL (S-2)
Gulf Ridge (T-1a)
Gulf Ridge (T-5 SDB)
Gulf Stream (T-3)
Hawk Mountain (S-3) (x2)
Heart of America (S-3)
Hiawathaland (T-2) (x2)
Indian Nations (S-3)
Indian Waters (S-1)
Inland Northwest (S-4b)
Istrouma Area (S-5) (x2)
Jayhawk Area (S-4) (x2)
Jersey Shore (S-17)
Juniata Valley (T-2b)
Lake Bonneville (T-1)
Lake Bonneville (T-2c)
Lake Huron Area (S-1)
Las Vegas (S-2)
Last Frontier (S-10)
Last Frontier (S-14)
Long Rivers (S-3)
Longs Peak (S-6)
Los Angeles Area (S-1) (x4)
Mecklenburg County (S-3)
Mid-Iowa (S-??) Current Issue
Middle Tennessee (S-3)
Middle Tennessee (S-12)
Monmouth (S-4)
Monterey Bay Area (T-1a)
Monterey Bay Area (T-1c)
Mound Builders Area (T-1c)
Mt Diablo-Silverado (S-1b)
Mt Diablo-Silverado (S-1c SDB)
Muskingum Valley (S-1b)
National Capital Area (S-2) (x3)
Netseo Trails (s-2b)
North Florida (T-1)
North Florida (T-2)
Northwest Sururban (T-1a)
Northwest Sururban (S-3d)
Occoneechee (S-6a)
Old Baldy (T-2)
Old Colony (S-6)
Orange County (S-11) (x2)
Oregon Trail (T-1)
Palmetto (S-2)
Pee Dee Area (T-2)
Penn Mountains (T-1)
Pikes Peak (S-2)
Pine Burr Area (S-3)
Potomac (S-3)
Quapaw Area (S-4)
Quivira (T-4)
Revolutionary Trails (S-5)
Rio Grande (S-3a)
Robert E Lee (S-1c)
Sam Houston Area (S-5b)
Sam Houston Area (S-6c) (x3)
Samoset (S-5b)
San Diego County (s-8)
San Francisco Bay Area (t-1)
San Gabreil Valley (S-32b)
Santa Fe Trail (T-2b)
Scenic Trails (T-1c)
Sequoia (S-5)
Shawnee (T-1)
Sioux (T-3)
Southeast Louisiana (S-??) Current Issue (x2)
Southeast Missouri (s-2a)
Southeast Wisconsin (S-2b)
Southern Sierra (S-3a)
Southwest Florida (S-1b)
Stonewall Jackson (S-20)
Sunnyland (T-4a)
Suwannee River Area (T-3a)
Tall Pine (S-4b)
Tennessee Valley (S-1d)
Teton Peaks (S-3a) (x2)
Thomas A Edison (S-6)
Three Rivers (S-3a)
Three Rivers (S-3b)
Toledo Area (S-2)
Transatlantic (T-1)
Tumwater Area (T-1)
Tidewater (S-3)
Twin Rivers (S-1b)
Twin Rivers (S-??) Current Issue
Twin VAlley (S-1b)
Two Rivers (s-2)
Viking (S-6b)
Washington Trail (T-1) (x2)
Watchung Area (T-2)
W.D. Boyce (S-3) (x2)
West Tennessee (S-2)
Westark Area (T-2)
Western Massachusetts (S-1)
Western Reserve (T-2)
Westmoreland-Fayette (S-2) (x2)
Yankee Clipper (S-1)
Yellowstone Valley (T-1)
York-Adams Area (T-2)

Quantities are indicated. 
I use the councilstrip.com website for identification.

Let me know if you are interested in a trade.

YiS,
John Coble
4159 S Olbek Pt
Homosassa FL 34446-1629