Details of a stamp in my main collection

CID1
StampRef545
SetRef0
CStateMint
ItemID1640
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/1640.jpg or collection/1640.png

CID1
StampRef545
SetRef0
CStateUsed
ItemID1644
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/1644.jpg or collection/1644.png

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