As per our long standing policy of not permitting medical advice on the forum - all threads concerning the Coronavirus will be locked.
For more info on the coronavirus please see the link below:
1947 first year American Aristocrat Jr and Super Speed underside base plate view. Top Left "REG U.S." Top-Right "PAT.OFF." bottom-Left "Diamond" Logo and Bottom right "MADE IN U.S.A."Note the distinctive "collar"just above the handle knurling on the Aristocrat Jr.