Details of a stamp in my main collection

CID1
StampRef1648
SetRef0
CStateMint
ItemID2428
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/2428.jpg or collection/2428.png

CID1
StampRef1648
SetRef0
CStateUS
ItemID11307
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/11307.jpg or collection/11307.png

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