Details of a stamp in my main collection

CID1
StampRef2604
SetRef0
CStateMint
ItemID12191
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/12191.jpg or collection/12191.png

CID1
StampRef2604
SetRef0
CStateUS
ItemID15291
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/15291.jpg or collection/15291.png

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