Made by MIDWINTER PORCELON, Burslem, England, for the London County Council. This piece stands 4 1/2" high with a diameter of 3 1/2" at the lip. The item has surface crazing but no chips.There is a small manufacture fault on the base as shown in pic attached.
Item ID: SUN929
1937 King George V1 & Queen Elizabeth Coronation Beaker