120mm howitzer casing question

[Hoeksel]

What I think so far (limited by resolution and Ottoman being pretty difficult) between "brackets" is what I think I read:

1 - "10,5/18" --> shell case dimensions indeed match with Turkish Skoda 10,5 cm L/18 M1914.
2 - "howitzer 14 (very doubtful 4),194 (very doubtful 4)" --> shell case dimensions match with Turkish Krupp 12,2 cm L/14 M1909.
3 - "German howitzer 15/14" --> shell case dimensions match with Turkish Krupp 15 cm L/14 M1905.
4 - "howitzer 10,5/?????" --> shell case dimensions match with Turkish Krupp 10,5 cm L/15,5 M1898/1909.
5 - no text, not sure yet about shell case dimensions.