Details of a stamp in my main collection

CID1
StampRef18198
SetRef0
CStateUS
ItemID12912
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/12912.jpg or collection/12912.png

CID1
StampRef18198
SetRef0
CStateMint
ItemID12939
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/12939.jpg or collection/12939.png

2 different examples of this stamp were found in the collection.