1 nov 1917  Austrian occupation
coloured printed numerals, red or black ovp on coloured base
  Perf L12 1/2 Perf L11 1/2 Perf  11 1/2 : 12 1/2 Imperf
3B red     x
5B red     x
6B red     x
10B red     x
12B red     x
15B red     x
20B red     x
25B red     x
30B red     x
40B red x x x
50B red     x
60B red     x
80B red     x
90B red     x
2L carmine on yellowish black     x
3L dark green on bluish black     x
4L carmine on greenish black     x
Varieties:
Imperforate
Bani and Lei inverted
Black ovp low values, red ovp high values

*

1 march 1918
numerals and ban/lei ovp in black on white base
  Perf L12 1/2 Imperf
3B x x
5B x x
6B x x
10B x x
12B x x
15B x x
20B x x
25B x x
30B x x
40B x x
50B x x
60B x x
80B x x
90B x x
2L carmine on yellowish x x
3L dark green on bluish x x
4L carmine on greenish x x
Varieties:
Without overprint   (imperforate, proofs?)
Imperforate
imperforate with red ovp
Inverted red ovp       Perforate Imperforate
Inverted black ovp   Perforate  Imperforate   (Note: Lei values on white paper)

*

1918  Unissued 
3B - 45Bbin bl of 4  50B - 90B in bl of 4
1B    on    1H olive
2B    on    2H orange
3B    on    3H grey
5B    on    5H green
10B  on   10H brown lilac
20B  on   20H cinnamon
25B  on   25H ultramarine
30B  on   30H olive
45B  on   45H light greyblack
50B  on   50H greygreen
60B  on   60H violet
80B  on   80H pink
90B  on   90H dark lilac

*

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Note: This issue is almost always found in complete sets - their use seems to have been mainly philatelic. But as seen they can be found on letters - but these three are clearly philatelic, cancelled to favour (one 37B, One 90B, same adress)
The varieties seems also to have appeared, not by accident, but through intent. Rumour has it that a member of the royal family ordered these varieties to be printed, for later philatelic sale
Michel Austria Special also lists some stationery. I would also very much appreciate jpgs of such.
Homemade forgeries from ebay