Overprint B group "a"

This overprint was used on special delivery stamps.
Catalogue number Pofis / Trojan 55 and 56.


Overprint B - group "a" - type I.

The height of the overprint is 10,5 mm, the length 20,5 mm.
The height of the letters is 2,6 mm, the angle 0.
1. The axle of T passes between O and V and between 1 and 9.
2. The vertical distance between CESKOSLOVENSKA and 1919 is 1 mm.
3. In the left part of K is a cut, in the upper part of S
    is a deep cut.
4. The hook over C and the stretch over A touch the letters.
5. The second 9 in 1919 is cut.

Overprint B - group "a" - type II.

The height of the overprint is 10,5 mm, the length 20,5 mm.
The height of the letters is 2,6 mm, the angle 0.
1. The axle of T touch the left part of V and 9.
2. The vertical distance between CESKOSLOVENSKA and 1919
    is 1,2 mm.
3. The K is without the cut, no cut in S. The middle stretch
    of E is longer
4. The hook over C and the stretch over A touch the letters.
5. The letter A is more closed (than in type III)
6. The second 9 in 1919 is cut.
7. In POSTA is a small dot between O and S.

Overprint B - group "a" - type III.

The height of the overprint is 10,5 mm, the length 20,5 mm.
The height of the letters is 2,6 mm, the angle 0.
1. The axle of T nearly passes the left part of V and touches
    the second 9.
2. The vertical distance between CESKOSLOVENSKA and 1919
    is 0,9 mm.
3. The K is without the cut, no cut in S.
4. The hook over C and the stretch over A are placed near to the letters.
5. The letter A is more open (than type II)
6. The second 9 in 1919 is cut.