Exponáty na Exponet.info:
Typ I

The height of the overprint is 18,5 mm, the length 27,5 mm.
The height of the letters is 4,0 mm, the angle is 55°.
1. The hook over S in POSTA looks like a heart and is placed close to the S.
2. The axle of V is exactly in axle of T and passes through the left curve of 9
3. The second 9 in 1919 is cut.
Podtyp Ia

The height of the overprint is 18,8 mm, the length 27,5 mm.
The height of the letters is 4,0 mm, the angle is 55°.
- The hook over S in POSTA is of different type and is placed
higher and to the right. - The axle of V is in the right part of T and partially in the right curve of 9.
- The second 9 in 1919 is cut.
Podtyp IIa

- + 2. same as type II.
- The second 9 in 1919 is not cut.