Postage Due
Montenegro, Michel Porto 16, Mint never hinged
1905. MONTENEGRO. POSTAGE DUE 25 H overprinted Constitution УСТАВ Никољдан 1905, never hinged.
Montenegro, Michel Porto 16, Hinged
1905. MONTENEGRO. POSTAGE DUE 25 H overprinted Constitution УСТАВ Никољдан 1905, hinged.
Montenegro, Michel Porto 18, Hinged
1905. MONTENEGRO. POSTAGE DUE 1 Kr overprinted Constitution УСТАВ Никољдан 1905, hinged.
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.