Caribe China Date Codes

Circa 1951-1973:
A letter code (dash) number. The letter code represents the year & the number code represents the quarter.

Circa 1974-1976:
A single number code (dash) A single letter code (note, it reverses the number/letter).

Year/Month
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
Jan.-March
D-1
E-1
F-1
G-1
H-1
I-1
J-1
K-1
L-1
M-1
April-June
D-2
E-2
F-2
G-2
H-2
I-2
J-2
K-2
L-2
M-2
July-Sept.
D-3
E-3
F-3
G-3
H-3
I-3
J-3
K-3
L-3
M-3
Oct.-Dec.
D-4
E-4
F-4
G-4
H-4
I-4
J-4
K-4
L-4
M-4
Year/Month
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
Jan.-March
N-1
O-1
P-1
Q-1
R-1
S-1
T-1
U-1
V-1
W-1
April-June
N-2
O-2
P-2
Q-2
R-2
S-2
T-2
U-2
V-2
W-2
July-Sept.
N-3
O-3
P-3
Q-3
R-3
S-3
T-3
U-3
V-3
W-3
Oct.-Dec.
N-4
O-4
P-4
Q-4
R-4
S-4
T-4
U-4
V-4
W-4
Year/Month
1971
1972
1973
1974
1975
1976
Jan.-March
X-1
Y-1
Z-1
A-1
B-1
C-1
April-June
X-2
Y-2
Z-2
A-2
B-2
C-2
July-Sept.
X-3
Y-3
Z-3
A-3
B-3
C-3
Oct.-Dec.
X-4
Y-4
Z-4
A-4
B-4
C-4
Notes: Date code may or may not contain a (dash).