POLSKIE Siły Zbrojne w drugiej wojny światowej. Vol. 2: Campaigns abroad. Part 1: September 1939 -...

POLSKIE Siły Zbrojne w drugiej wojny światowej. Vol. 2: Campaigns in exile. Part 1: September 1939-June 1941. London 1959. general Sikorski Historical Institute. 8, pp. XXI, [3], 411, [1], loose plates (Sketches 1-20). booklet.
[and] POLISH Armed Forces in World War II. Vol. 2: Campaigns abroad. Part 2. London 1975. the Polish Institute and the General Sikorski Museum. 8, pp. XV, [1], 584, loose appendices. original cloth binding.
Binding inconsistent, minor rubbing of booklet cover, inside very good condition. A source study of the subject under the aegis of the Historical Commission of the Polish General Staff in London.