
1. Berndt Friberg's unique objects from 1939–1944. Relief stamp with the Gustavsberg anchor and "Ankargods" (Anchor Ware). Stylized incision "BF".
2. Berndt Friberg's unique objects from 1944–1947. Relief stamp with the Gustavsberg studio hand and "BF".
3. Berndt Friberg's unique objects from 1948–1974. Incised signature "Friberg", production year letter mark, and Gustavsberg studio hand.
4. Berndt Friberg's unique objects from 1975–1981. Incised signature "Friberg", production year, and Gustavsberg studio hand.
During the 1948–1974 period he used the following year marks:
R = 1948
S = 1949
T = 1950
U = 1951
V = 1952
X = 1953
Y = 1954
Z = 1955
Å = 1956
Ä = 1957
Ö = 1958
A = 1959
B = 1960
C = 1961
D = 1962
E = 1963
F = 1964
G = 1965
H = 1966
I = 1967
J = 1968
K = 1969
L = 1970
M = 1971
N = 1972
O = 1973
P = 1974
Q = 1975
That wasn’t so hard, was it?