Jackson China Date Codes

Jackson China is date coded with a very simple date code. There is a letter/number combination. The letter represents the year and starts with "A" which represents 1951 and ends with "Z" which represents 1976, then repeats with the letter "A" in 1977 and continues to 1985. The number represents the month, starting with 1 for January and ending with 12 for December. Pieces manufactured after 1985 are not date coded.
Year/Month
1951 1952 1953 1954 1955 1956 1957 1958 1959 1960
January
A1
B1
C1
D1
E1
F1
G1
H1
I1
J1
February
A2
B2
C2
D2
E2
F2
G2
H2
I2
J2
March
A3
B3
C3
D3
E3
F3
G3
H3
I3
J3
April
A4
B4
C4
D4
E4
F4
G4
H4
I4
J4
May
A5
B5
C5
D5
E5
F5
G5
H5
I5
J5
June
A6
B6
C6
D6
E6
F6
G6
H6
I6
J6
July
A7
B7
C7
D7
E7
F7
G7
H7
I7
J7
August
A8
B8
C8
D8
E8
F8
G8
H8
I8
J8
September
A9
B9
C9
D9
E9
F9
G9
H9
I9
J9
October
A10
B10
C10
D10
E10
F10
G10
H10
I10
J10
November
A11
B11
C11
D11
E11
F11
G11
H11
I11
J11
December
A12
B12
C12
D12
E12
F12
G12
H12
I12
J12
Year/Month
1961 1962 1963 1964 1965 1966 1967 1968 1969 1970
January
K1
L1
M1
N1
O1
P1
Q1
R1
S1
T1
February
K2
L2
M2
N2
O2
P2
Q2
R2
S2
T2
March
K3
L3
M3
N3
O3
P3
Q3
R3
S3
T3
April
K4
L4
M4
N4
O4
P4
Q4
R4
S4
T4
May
K5
L5
M5
N5
O5
P5
Q5
R5
S5
T5
June
K6
L6
M6
N6
O6
P6
Q6
R6
S6
T6
July
K7
L7
M7
N7
O7
P7
Q7
R7
S7
T7
August
K8
L8
M8
N8
O8
P8
Q8
R8
S8
T8
September
K9
L9
M9
N9
O9
P9
Q9
R9
S9
T9
October
K10
L10
M10
N10
O10
P10
Q10
R10
S10
T10
November
K11
L11
M11
N11
O11
P11
Q11
R11
S11
T11
December
K12
L12
M12
N12
O12
P12
Q12
R12
S12
T12
Year/Month
1971 1972 1973 1974 1975 1976 1977 1978 1979 1980
January
U1
V1
W1
X1
Y1
Z1
A1
B1
C1
D1
February
U2
V2
W2
X2
Y2
Z2
A2
B2
C2
D2
March
U3
V3
W3
X3
Y3
Z3
A3
B3
C3
D3
April
U4
V4
W4
X4
Y4
Z4
A4
B4
C4
D4
May
U5
V5
W5
X5
Y5
Z5
A5
B5
C5
D5
June
U6
V6
W6
X6
Y6
Z6
A6
B6
C6
D6
July
U7
V7
W7
X7
Y7
Z7
A7
B7
C7
D7
August
U8
V8
W8
X8
Y8
Z8
A8
B8
C8
D8
September
U9
V9
W9
X9
Y9
Z9
A9
B9
C9
D9
October
U10
V10
W10
X10
Y10
Z10
A10
B10
C10
D10
November
U11
V11
W11
X11
Y11
Z11
A11
B11
C11
D11
December
U12
V12
W12
X12
Y12
Z12
A12
B12
C12
D12
Year/Month
1981 1982 1983 1984 1985 1986 1987 1988 1989 1990
January
E1
F1
G1
H1
I1
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded
February
E2
F2
G2
H2
I2
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded
March
E3
F3
G3
H3
I3
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded
April
E4
F4
G4
H4
I4
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded
May
E5
F5
G5
H5
I5
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded
June
E6
F6
G6
H6
I6
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded
July
E7
F7
G7
H7
I7
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded
August
E8
F8
G8
H8
I8
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded
September
E9
F9
G9
H9
I9
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded
October
E10
F10
G10
H10
I10
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded
November
E11
F11
G11
H11
I11
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded
December
E12
F12
G12
H12
I12
Not Coded
Not Coded
Not Coded
Not Coded
Not Coded

Notes: Date code may or may not contain a (dash).