Russia, Ottoman Empire, Serbia, Palestine etc., approx. 30 titles including Fürstentum Serbien by V.M. Kardosch (1996: this is no. 54 of 400), Stamps of the Russian Empire used abroad by S.D. Tchilinghirian and W.S.E. Stephen (1957) in hard bound copy (all 6 volumes) and separate volumes. Added some general works on forgeries in box
