A) Single sheet with 11 low value stamps. 50 such sheets were issued.
B) Sheet pair with all 28 stamps. The first sheet (B1) contains 11 stamps Mi: V, VI, VII, VIII, IX, XI, P1, PI, PII, PIII and 8, the second sheet (B2) contains all 17 remaining stamps. Note that all higher value stamps are on the first sheet (B1)! Only 16 such sheet pairs were prepared and only few remains in existence.
It is interesting that sheets A and B2 have constant layout. I have not seen a case where the positions differ significantly.
Layout of sheet A.
Layout of sheet B2.
On the other hand, I saw three different layouts of sheet B1, two of them with 11 stamps and one with 10 stamps only.
Sheet B1 with carmine brown 24f (Mi 8) at the bottom. Symmetric layout.
Sheet B1 with carmine brown 24f on the right side. Asymmetric layout.
Sheet B1 without carmine brown 24f.
