RW46var, 1979 Green-winged Teal, orange color shift creates "halo" on duck heads, black also mis-aligned, VF-XF NH Cat($12) (Image)

$20

RW57b, 1990 BLACK-BELLIED WHISTLING DUCKS ERROR, BLACK INSCRIPTION PRINTED ON THE STAMP PAPER RATHER THAN THE GUM, very lgt magenta ccl at btm, RARE, unvalued in Scott catalogue, XF-Superb 95, 2010 PSE graded certificate (Image)

$650