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Census of 4c Deep Blue Green (Scott 211D)

211D-UNC-17

211D-UNC-17
Unknown

Notes:
    Provenance:
    • Caspary Coll. - HRH 11/21/1956 as block of four
    Certificates:
    • PFC 7405 as block of four “Genuine” (B.L. stamp)
    • PFC 7405C as single “Genuine”
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