Hungary, Turul Over Crown Sets, Questions.

While arranging my collection I ran into several problems. Maybe others had them too and can share their experience.

1) Watermarks. Stampworld (SW) mentions 5 main watermarks for the Turul sets. I compared them to Scott (SG doesn't mention wm at all).
Scott wm 135, SW wm 3.
Scott wm 136a, SW wm 4.
Scott wm 136, SW wm 5. In Scott the crown legs are longer, SW looks more like the real wm.
Scott wm 137, SW wm 7. The real wm looks more like Scott's example.
SW mentions wm 6, which I saw on stamps but not mentioned in Scott.

2) Perforation. Where I should have seen 12x11.5, I found 12x12, 12.5x12, did anyone else experience that?

3) Stamp size. I found slight differences in stamp size. Is it known for the Turul series?


4)Image flaw: Philatelica Hungarica catalog identifies when the frame of the net is partially absent under the right wing of the eagle. Is this a common feature?


Thank you for reading.

Michel measures the available perfs as 12x11.5 or 11.5 with them all using watermark 3 from 1899. My guess is Stampworld sourced its information from Michel, since both catalogs agree on these.

Yvert & Tèlier is quite good with early Hungary.
This is all that Turul has, although on page 3 two different watermarks are mixed.

@Roberto

Páginas informativas y bonitas, como siempre.
(Informative and pleasing pages, as always.)