4d orange 1st wm perf small OS
(SG O21)
Unmounted Mint APR
Mint lightly mounted APR
Unused - no gum / heavy hinge remains APR
Very Fine Used APR
Fine Used 135
Good Commercially Used 95
APR: Availability & Price on Request

$450
K001 (SG O21)

Mint Lightly Mounted
Centered Low

$110
K056 (SG O21)

Fine Used, minor perf tones

$100
K338 (SG O21)

Fine Used

$300
K494 (SG O21a)
Yellow-Orange Shade
Fine Used
Centered Left