Details of a stamp in my main collection

CID1
StampRef1914
SetRef0
CStateMint
ItemID6406
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/6406.jpg or collection/6406.png

CID1
StampRef1914
SetRef0
CStateUS
ItemID6416
CoverID
Quality
Description
CollectTypeMain Stamp
Comment
Location
Multiplicity1
PurchaseID0
PricePaid0
CurrencyGBP
Accession
Disposed

No image found for collection/6416.jpg or collection/6416.png

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