Details of a stamp in my main collection

CID1
StampRef2190
SetRef0
CStateUS
ItemID1975
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/1975.jpg or collection/1975.png

CID1
StampRef2190
SetRef0
CStateMint
ItemID1988
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/1988.jpg or collection/1988.png

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