Identification

As already mentioned it is sometimes difficult to differenciate the subtypes.
I have made a list some of the criterias from the literature and of my measurements. The standard paper thickness is about 8/100mm. But be careful with stamps with wrinkled gum.

Nr. Type Year Criterias Example
1 July 1905 olivgreen / 12.15 / sheet border imperforated
2 A July 1905 redbrown / 12.15
B Oct. 1910 light brown / 12.15 / sheet boder imperforated, 25 sheets reperforated 11.35
3 A July 1905 dark blue / 12.15
B Oct. 1910 blue / 12.15 / sheet boder imperforated, 100 sheets reperforated 11.35
4 A March 1915 ligth olivegreen / 11.35 / sheet boder imperforated, 225 sheets reperforated 11.35
B Feb. 1919 olivegreen / 11.35
C Jan. 1924 dark olivegreen / 11.35
D May 1926 olivegreen / 11.35
5 A March 1915 light yellow / 11.35 / sheet boder imperforated, 200 sheets reperforated 11.35
B Feb. 1919 dark yellow / 11.35
C Jan. 1924 orange yellow / 11.35
6 A March 1918 redbrown cartonlike paper 15/100mm with gum / sheet boder imperforated, 25 sheets reperforated 11.35
B Jan. 1924 redbrown / 11.35 / paper 7-8/100mm
C June 1928 black brown / 11.35
7 A March 1918 dark blue cartonlike paper / 11.35 / 14/100mm with gum
B Jan. 1924 dark blue / 11.35 / paper 8/100mm
C June 1928 greenish blue / 11.35
D June 1931 greenish blue / 11.35
8 A March 1915 violet ( blue ) / 11.35 / sheet boder imperforated, 250 sheets reperforated 11.35
B Jan. 1923 violet, reddish / 11.35 / cartonlike paper 10-11/100mm
C June 1928 violett / 11.35
9 A March 1915 red, dull / 11.35 / sheet boder imperforated, 250 sheets reperforated 11.35
B Jan. 1923 red, dull / 11.35 / cartonlike paper 11/100mm
C July 1926 red, dull / 11.35
D 1927 red / 11.35
E July 1929 red / 11.35
F June 1931 red / 11.35
G June 1933 dark red / 11.35
10 Ia March 1930 violet / 11.35 / normal paper
Ib March 1930 violet / 11.35 / thick paper
11 March 1930 yellow / 11.35
12 March 1930 brown / 11.35 / normal paper 8/100mm
a March 1930 brown / 11.35 / thick paper 10/100mm
13 Feb. 1937 violet / 11.35 / Offset-print, different design, Lachmann edition
14 Feb. 1937 yellow / 11.35 / Offset-print, different design, Lachmann edition
15 Feb. 1938 10.75
16 July 1937 10.75
17 July 1937 10.75
18 July 1937 10.75