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

211D-UNC-17
Unknown

Notes:

Provenance:

• 11/21/1956, Caspary Collection, H.R. Harmer, as block of four

Certificates:

• PF 7405 as block of four “Genuine”, B.L. stamp
• PF 7405 C as single “Genuine”