Details of a stamp in my main collection

CID1
StampRef1247
SetRef0
CStateMNH
ItemID12034
CoverID
Qualityfine
Descriptionsomewhat irregular perfs; I measure 11x10½x10½x10¾, with left bar 13.4mm, right bar 13.8mm, spacing 10.8mm.
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID2966
PricePaid54.65
CurrencyGBP
Accession20210612
Disposed

No image found for collection/12034.jpg or collection/12034.png

There is one example of this stamp in the collection.