Details of a stamp in my main collection

CID1
StampRef1640
SetRef0
CStateMint
ItemID2425
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/2425.jpg or collection/2425.png

CID1
StampRef1640
SetRef0
CStateUS
ItemID11304
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/11304.jpg or collection/11304.png

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