CO1 - 1990 Canada goose Mint Single 12.00 Artist Signed 30.00	CO2 - 1991 Mallard Mint Single 15.00 Artist Signed 30.00	CO3 - 1992 Pintail Mint Single 12.00 Artist Signed 25.00	CO4 - 1993 Green-winged teal Mint Single 12.00 Artist Signed 25.00
CO5 - 1994 Wood duck Mint Single 12.00 Artist Signed —	CO6 - 1995 Bufflehead Mint Single 12.00 Artist Signed 25.00	CO7 - 1996 Cinnamon teal Mint Single 12.00 Artist Signed 25.00	CO8 - 1997 Wigeon Mint Single 10.00 Artist Signed 25.00
CO9 - 1998 Redhead Mint Single 10.00 Artist Signed 25.00	CO10 - 1999 Blue-winged teal Mint Single 10.00 Artist Signed —	CO11 - 2000 Gadwall Mint Single 10.00 Artist Signed —	CO12 - 2001 Ruddy duck Mint Single 10.00 Artist Signed 25.00
CO13 - 2002 Common goldeneye Mint Single 10.00 Artist Signed 25.00	CO14 - 2003 Canvasback Mint Single 10.00 Artist Signed 25.00	CO15 - 2004 Snow goose Mint Single 10.00 Artist Signed 25.00	CO16 - 2005 Shoveler Mint Single 10.00 Artist Signed 25.00
CO17 - 2006 Ring-necked Duck Mint Single 10.00 Artist Signed 25.00	CO18 - 2007 Hooded merganser Mint Single 10.00 Artist Signed 25.00	CO19 - 2008 Lesser scaup Mint Single 10.00 Artist Signed 25.00	CO20 - 2009 Barrow's goldeneye Mint Single 10.00 Artist Signed 25.00
CO21 - 2010 Pintail Mint Single 10.00 Artist Signed 25.00	CO22 - 2011 Green-winged teal Mint Single 9.00 Artist Signed 25.00	CO23 - 2012 Ross' goose Mint Single 9.00 Artist Signed —	CO24 - 2013 Greater scaup Mint Single 9.00 Artist Signed —
CO25 - 2014 Canada goose Mint Single 9.00 Artist Signed —	CO26 - 2015 Wood duck Mint Single 9.00 Artist Signed —	CO27 - 2016 Mallard Mint Single 10.00 Artist Signed —	CO28 - 2017 Redhead Mint Single 13.00 Artist Signed —
CO29 - 2018 Ring-necked duck Mint Single 13.00 Artist Signed —	CO30 - 2019 Pintail Mint Single 15.00 Artist Signed —	CO31 - 2020 Canvasback Mint Single 13.00 Artist Signed —	CO32 - 2021 Cinnamon teal Mint Single 13.00 Artist Signed —

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Hunter Stamps CO1h 1990 12.00 CO2h 1991 15.00 CO3h 1992 10.00 CO4h 1993 12.00 CO5h 1994 12.00 CO6h 1995 12.00 CO7h 1996 12.00 CO8h 1997 10.00 CO9h 1998 10.00 CO10h 1999 10.00 CO11h 2000 10.00

Governor Edition Stamps See complete list of Governor Edition stamps CO1G 1990 60.00 Roy Romer (D) CO1G 1990 60.00 Roy Romer (D) CO1G(s) 1990 150.00 Hand-signed by Romer CO1G(s) 1990 150.00 Hand-signed by Romer CO2G 1991 60.00 Roy Romer CO2G 1991 60.00 Roy Romer CO2G(s) 1991 185.00 Hand-signed by Romer CO2G(s) 1991 185.00 Hand-signed by Romer CO3G 1992 60.00 Roy Romer CO3G 1992 60.00 Roy Romer CO3G(s) 1992 125.00 Hand-signed by Romer CO3G(s) 1992 125.00 Hand-signed by Romer CO4G 1993 60.00 Roy Romer CO4G 1993 60.00 Roy Romer CO4G(s) 1993 125.00 Hand-signed by Romer CO4G(s) 1993 125.00 Hand-signed by Romer