Montenegro. ★★/★/⊙. Very probably an irreplaceable range of many 1000s of stamps, chronologically ordered mint and used in parallel, a most challenging lot to view as virtually everything is housed stamp on stamp, from the first issues through to early 20th century. The holding is completely uncatalogued, well filled to bulging in one substantial volume ending with back of the book and material we have never seen before. It should also be mentioned that throughout this fabulous range there are 'a' numbers and similar material that is not listed at all inc perforations/varieties etc. An opportunity seldom available to buy a very comprehensive holding of this wealthy European country. These stamps have a long way to go as they are grossly undervalued for their printing numbers please inspect.