Montenegro – back of the book issues

Acknowledgement of receipt
There are 5 different AR stamps, all inscribed AR in the upper corners.

 File:Montenegro AR.jpg|1895 issue. File:Montenegro Ackn Rec.jpg|1907 issue. 

Postage due
 File:Montenergro Due A.jpg|1902 25h value. File:Montenegro 25para due.jpg|From the 1907 issue. File:Montenegro due B.jpg|From the 1913 issue. 
 * In 1894, the first postage dues were released, inscribed ПОШТА ЦРНЕ ГОРЕ / ТАКСЕНА БНЉЕГА.
 * In 1902, an issue in new currency (Хелера) and colors was released, similarly inscribed.
 * In 1907, new postage dues were inscribed ДОПЛАТНА БНЉЕГА. ("Л" stylized as "Λ").
 * In 1913, a design matching the definitives was issued, inscribed ПОРТОМАРКА. There is no country name.

World War I

 * Montenegro was invaded by Austrian forces in 1916 with occupation resulting in Austrian stamps overprinted K.u.K MILIT.- / VERWALTUNG / MONTENEGRO, issued in 1917.
 * A further issue overprinted Montenegro exists but was never released with the end of the war.
 * The Montenegrin government in exile overprinted French stamps with S. P. / du M. / Bordeaux. These were eventually declared illegal by France, though some were used for a time by the exile government.

World War II

 * Italian forces invaded the Balkans early in 1941 while issuing Yugoslavian stamps for Montenegro overprinted Montenegro / ЦРНЕ ГОРЕ / 17-IV-41 XIX.
 * Also in 1941, Italian stamps were overprinted ЦРНЕ ГОРЕ.
 * In 1942, the occupying government had been established and surcharges in lire on Yugoslavian stamps were issued, reading Governatorato / del / Montenegro. Airmails were also released with a different overprint style/typeface.
 * In May 1943, a pictorial set was released, inscribed ЦРНЕ ГОРЕ.
 * Italian control ended in September 1943 with Italy's collapse. German forces then occupied Montenegro. In 1943, Yugoslavian stamps were surcharged Deutsche / Milataer- / Verwaltung / Montenegro, again in lire.
 * Italian occupation pictorials were also overprinted Nationaler / Verwaltungsausschuss / 10.XI.1943.
 * German forces evacuated in December 1944, leaving control to Montenegrin fascists. Yugoslav partisans entered Montenegro, making it part of the new Federation of Yugoslavia.

 File:Montenegro it occ C.jpg|From the first Italian occupation issue. File:Montenegro Ital occ B.jpg|Italian occupation government issue. File:Montenegro ital occ A.jpg|Overprinted Italian stamp. File:Montenegro view.jpg|1943 Italian occupation pictorial. File:Montenegro Deutsche.jpg|From the first German occupation issue. File:Montenegro occ Nationaler.jpg|1943 German occupation stamp. File:Montenegro occup air.jpg|German occupation semipostal. File:Montenegro occup semi.jpg|German occupation Red Cross semipostal. 

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