Details of a stamp in my main collection

CID1
StampRef1981
SetRef0
CStateUS
ItemID8628
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/8628.jpg or collection/8628.png

CID1
StampRef1981
SetRef0
CStateMNH
ItemID8646
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID2075
PricePaid6.69
CurrencyGBP
Accession20180727
Disposed

No image found for collection/8646.jpg or collection/8646.png

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