Details of a stamp in my main collection

CID1
StampRef19582
SetRef0
CStateUS
ItemID15060
CoverID
Qualityfine
Descriptionwith lower margin, centred slightly right, Chungking dotted cds, date hard to read but may be from April 1942?
CollectTypeMain Stamp
Commentitem 9.5 from purchase 3733
Location6
Multiplicity1
PurchaseID3733
PricePaid6.11
CurrencyGBP
Accession20230927
Disposed

There is one example of this stamp in the collection.