IJkkantoor = Verificaton office
1 Kilo . = 1 Kilogram. . .# 19 = Maastricht. - Q = 1906 - R = 1947
500 gram. = 5 Hektogram. # 19 = Maastricht. - Q = 1906 - R = 1947
200 gram. = 2 Hektogram. # 19 = Maastricht. - Q = 1906 - H = 1934
100 gram. = 1 Hektogram. # 19 = Maastricht. -Q = 1906 - H = 1934
100 gram. = 1 Hektogram. # 19 = Maastricht. -Q = 1906 - H = 1934
. 50 gram.= 5 DG Decigram # 19 = Maastricht.-Q = 1906 - H = 1934
. 20 gram. = 2 DG # 3 = Arnhem . - P = 1904 - H = 1934
. 10 gram. = 1 DG # 19 = Maastricht - Q = 1906 - H = 1934
. 10 gram. = 1 DG = 10 gram 19 =Maastricht- Q = 1906 - H = 1934
. 5 gram. = 5 G # 3 = Arnhem - C = 1926
. 2 gram. = 2 G # 3 = Arnhem - Afgekeurd / Rejected
. 2 gram. = 2 G # 5 = Den Haag - B = 1965 - F = 1972
. 1 gram. = Afgekeurd/ Rejected # D =1967 - E = 1969