2.1943 - Kroat.Infanterie Ersatz Regiment 369 to Zagreb

 06.02.1943 feldpost letter with contents, mailed  from Fp.41700 S to Zagreb.  Fp. number 41700 S was used by 15.company, III.battalion of  Kroat.Infanterie Ersatz Regiment 369 stationed in Stockerau in Austria. Text is in Croatian, German censorship marks are present on the cover and on the text. 

5.1944 - II. doknadna opkoparska bojna to Dubrovnik

26.05.1944 official letter from 2.sat, II. doknadne obkoparske bojne (2.company of 2. Pioneer Replacement  Battalion) in Brčko mailed to Kotarska oblast in Dubrovnik. Kotarska oblast was a form of local government. Correctly franked letter with official stamp of 3,50 kuna value.
 

10.1916 K.u.K 13.Sapper battalion feldpost

 

05.10.1916 Feldpostkarte mailed by a member of 3.company of 13.Sappeur battalion via Fp.44 used by 36.Inf.division to a member of 4.company of 13.Sappeur batallion at  Fp.303 used by 1. Inf.division.  13.Sappeur battalion was based in Zagreb same as 36.Inf.div. and both units were mostly Croatian.  Different companies of 13.Sappeur battalion were dispersed with many different units. At this time 3.company is on Russia front in Galicia with 36.Inf.division while 4.company is with 1.Inf division on Italian front. Text is written in Croatian.

2.1943 SS.feldpost from 'Fürsorge SS-Führer Kroatien'

 05.02.1943 SS-feldpost  letter to Graz in  Steiermark (today Austria) from Fp. 03161 - Fürsorge SS-Führer Kroatien, SS-Poststelle Esseg und Ersatz-Kommando Südost der Waffen-SS Nebenstelle Esseg. After Fp.number there is no additional letter hence this number was used by the first unit listed "Fürsorge SS-Führer Kroatien". Fürsorge means welfare in English, but what was exact units duty I'm not sure.

1.1942 Ustasha army - Railway security battalion in Bosnia

 30.01.1942 Extremly Rare letter from Zagreb to a member of Željeznička Ustaška Vojnica(ŽUV), 1st.company in Maglaj, Bosnia. At that time Željeznička vojnica had only one battalion. On the cover ŽUV is misspelled as ZVV but I have another cover mailed to the same person in ŽUV that I published here - Ustasa Railway security militia