Details of a stamp in my main collection

CID1
StampRef8559
SetRef0
CStateMint
ItemID8285
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/8285.jpg or collection/8285.png

CID1
StampRef8559
SetRef0
CStateUS
ItemID11721
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/11721.jpg or collection/11721.png

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