The sale has the hallmarks of a Lang/Kelleher production such as undisclosed faults and certs.
Take a look at the 211D, Lot 285.https://stampauctionnetwork.com/V/v...3.cfm#Lot285
The Kelleher description states
ex Caspary, with photocopy of 1957 P.F. certificate, plus original 1989 P.F. and 2015 P.S.E. certificates, the last graded XF 90.
There is a PF cert that is not mentioned in Kelleher's description. The following from the 211D Siegel census:
Caspary Collection, HRH 11/21/1956 as block of four - $2,100
Hansen Coll.ection, Siegel Sale 963, 10/28/2008, lot 830 - $62,500 hammer
PFC 7405 as block of four "Genuine" (T.L. stamp)
PFC 7405A as single "Genuine"
PFC 218671 "Genuine"
PFC 468487 "Genuine, narrow hinge thin at top"
Do you see Kelleher mention PF cert 468487 that states "Genuine, narrow hinge thin at top"? I don't.
This is the first and only lot that I did a bit of research on. Enough for me.