Bulgaria. Mostly used. Excellent accumulation of thousands of stamps housed in three volumes, classics to 1950, starting with an extensive range of the 19th century lions with 100 mint and used on the 1879/81 issues alone, highlights including Mi 1 5 c black and orange and black and yellow both mint, 1879 10 c used (two), 25 c mint, 50 c unused and four used, through to the 1884/85 surcharges with over 20 requiring study to 50 s on 1 fr unused, then later surcharge errors, selected postmarks, interesting WW2 material, etc, through to a highly specialised section of postage dues incl. 1884 first set used, 1886 imperf 5 s orange mint, etc. Much more will be here when investigated thoroughly, please inspect.