Proof 4d. pair die, cut to frame-lines, in black on India, mounted on card with chamfered corners, showing the absence of the "F" flaw on the Die "B" impression; minor nicks, one apex improved

Details
Proof 4d. pair die, cut to frame-lines, in black on India, mounted on card with chamfered corners, showing the absence of the "F" flaw on the Die "B" impression; minor nicks, one apex improved
Provenance
"Bonaventure", 1993, lot 6