Details of a stamp in my main collection

CID1
StampRef2601
SetRef0
CStateMint
ItemID12188
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/12188.jpg or collection/12188.png

CID1
StampRef2601
SetRef0
CStateUS
ItemID15288
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/15288.jpg or collection/15288.png

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