Thanks a lot bob.
I still have 4 stamps that at first sight have the same variety.
Regarding the measurement method, I recently received valuable information from the "perf12" (D2 method). http://goscf.com/t/63170
The values differ from catalog to catalog, because I think different measurement methods are used (D1, D2 or D3, I think)
The recommended method of "perf12" seems to me the correct one, but unfortunately for these stamps of mine I do not have some with normal overprint.
There are 2 types of varieties (normal distance + 0.4mm -rare) and (normal distance + 0.8mm)
I'm not sure but I think my varieties (if they are genuine) are rare.
Thanks in advance if you can help me with the catalog numbers and quotas for the 4 new stamps.
I'm still waiting for the information from Dallay or Philatelix catalogs.