Monaco - Stamp Museum Block engraved by SLANIA, imperforate test dated, RARE as well! 66

Description
Monaco - Stamp Museum Block engraved by SLANIA, imperforate test dated, RARE as well! 66
MNH (Mint never hinged)

Stamp Museum block sheet engraved by SLANIA, imperforate essai dated, RARE thus! Extremely fine.
Please see the photos to draw your own conclusions.

Lot details
Geographic Origin
Monaco
Composition
Single stamp
Short Description
Stamp Museum Block engraved by SLANIA, imperforate test dated, RARE as well!
Catalogue Number
66
Condition
MNH (Mint never hinged)
Has certificate or expert signature
No
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