Postage Due
![Montenegro 1905](/image/161883/base250X250/montenegro-1905-montenegro-postage-due-25-h-overprinted-constitution-1905-never.jpg)
Montenegro, Michel Porto 16, Mint never hinged
1905. MONTENEGRO. POSTAGE DUE 25 H overprinted Constitution УСТАВ Никољдан 1905, never hinged.
![Montenegro 1905](/image/161884/base250X250/montenegro-1905-montenegro-postage-due-25-h-overprinted-constitution-1905-hinged.jpg)
Montenegro, Michel Porto 16, Hinged
1905. MONTENEGRO. POSTAGE DUE 25 H overprinted Constitution УСТАВ Никољдан 1905, hinged.
![Montenegro 1905](/image/161885/base250X250/montenegro-1905-montenegro-postage-due-1-kr-overprinted-constitution-1905-hinged.jpg)
Montenegro, Michel Porto 18, Hinged
1905. MONTENEGRO. POSTAGE DUE 1 Kr overprinted Constitution УСТАВ Никољдан 1905, hinged.
![Montenegro 1905](/image/161886/base250X250/montenegro-1905-montenegro-postage-due-1-kr-overprinted-constitution-1905-4block.jpg)
Montenegro, Michel Porto 18, Mint never hinged, Hinged
1905. MONTENEGRO. POSTAGE DUE 1 Kr overprinted Constitution УСТАВ Никољдан 1905, 4block with 2 stamps hinged and 2 stamps never hinged.