5/- yellow 2nd wm perf OS
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$200
K365 (SG O37)
Fine Used
Typical Rough Perfs
$200
K366 (SG O37)
Fine Used
Typical Rough Perfs
$200
K448 (SG O37)
Good Used
$140
K449 (SG O37)
Good Used
Corner bend
$300
K450 (SG O37)
Very Fine Used
1 shortish perf
$330
K761 (SG O37)
Fine Used
Well Centered
$260
K762 (SG O37)
Fine Used
$300
K822 (SG O37)
Fine Commercially Used
$330
K860 (SG O37)
Fine Used
Nice Example
$950
K009 (SG O37w)
Inverted Watermark
Fine Used