DWM Date Codes


#1

Hello, All…
The list of date codes presented here was compiled by a good friend. Not all codes may have been used…
Below are shown two headstamps, both on 7x57mm Mauser cartridges. On the left is one which shows the two small letters on either side of “DWM”; on the right, two different letters…how do we interpret the headstamp on the right?

A A = 1946
B B = 1945
C C = 1944
D D = 1943
E E = 1942
F F = 1941
G G = 1940
H H = 1939
I I = 1938
J J = 1937
K K = 1936
L L = 1935
M M = 1934
N N = 1933
O O = 1932
P P = 1931
Q Q = 1930
R R = 1929
S S = 1928
T T = 1927
U U = 1926
V V = 1925
W W = 1924
X X = 1923
Y Y = 1922
Z Z = 1921

Thanks…Randy


#2

This list is not quite right - here is my most up to date list and as you can see there are still a few unknown/unconfirmed codes:


After WW1, DWM introduced codes on the hs of their sporting calibres to identify the year they were produced. These were two small capital letter DATE codes at 11 and 1o’clock on each side of the “DWM” on the hs. The first known use of such codes was in 1925 when “V V” was used (this is confirmed from a factory drawing dated 28 July 1925). The letters start with VV and go down the alphabet and were used between WW1-WW2. It is unusual that “ZZ,YY,XX and WW” were not apparently used although if you take these backwards, “Z Z” would represent 1921 which was about the time that DWM commenced ammunition production after WW1 (believed to have been in 1920). Confirmed codes are as follows:

V V = 1925 Start of Transitional cases (meaning cases using both case
U U = 1926 numbers and calibres)
T T = 1927
S S = 1928
R R = 1929
Q Q = 1930
P P = 1931
O O = 1932
N N = 1933
M M = 1934
L L = 1935 First non case-numbered cases
K K = 1936
J J = 1937 (confirmed as 1937)
H H = 1938 (used in post WW2 IWK pkts)
G G = 1939 ?? Last known case numbered cases

Post WW2 IWK DATE codes (generally at 3 and 9 o’clock)

F F = 1959 ?
E E = 1960 ?
D D = 1961 ?
C C = 1962 ?
B B = 1963 ?

Karlsruher (K) Factory /// s’Hertogenbosch (H) Factory (NWM)

K B = 1963 H B = 1963
K A = 1964 H A = 1964
K Z = 1965 H Z = 1965
K Y = 1966 H Y = 1966*
K X = 1967 H X = 1967
K W = 1968 H W = 1968*
K V = 1969 H V = 1969
K U = 1970 H U = 1970
K T = 1971 H T = 1971*
K S = 1972 H S = 1972*

  • = Not known to exist

Other unusual DWM/ IWK codes that may be post WW2 codes

L O (confirmed) = ?

L M (unconfirmed)

(sometimes stated to be Lübeck factory with O = 1932 year code but this is before the Lübeck factory was established in 1935)

N 0 = ? (confirmed) " - is it oh or nought ?

N 1 = ?

Note the following are WW1-WW2 factory codes used at 3 and 9 o’clock:

K K = Karlsruher

B B = Berlin

L L= Lübeck (1935-1941)