Pennies, 1937-1951

George VI, First Obverse, 1937-1948

1937, BU full lustre		1937, Ns on rev point between teeth, UNC good lustre
1937, PROOF		1938, BU almost full lustre
1939, UNC much lustre		1940 rev has single exergue line
1940 rev has double exergue line, BU almost full lustre		1944, waves touch exergue
1944, gap from waves to exergue, UNC		1945, mint darkened, UNC
1946, mint darkened, UNC		1947, BU full lustre
1948, BU full lustre

George VI, Second Obverse, 1949-1951

1949, BU almost full lustre		1950, BU almost full lustre
1950, PROOF		1951, BU full lustre
1951, PROOF

Lustre Terminology for copper and bronze:
Trace  - 5% to 20% lustre
Good - 21% to 50% lustre
Much - 51% to 70% lustre
Almost full - 71% to 90% lustre
Full - 91%-100% lustre