Balloon Campaign Box 23 Highlight Balloon Campaign Rare Book & Manuscript Library Imre Kovacs Papers, 1945-1980Series IV: Subject FilesFree Europe
"Balloon Leaflets" Box 23 Highlight "Balloon Leaflets" Rare Book & Manuscript Library Imre Kovacs Papers, 1945-1980Series IV: Subject FilesFree EuropeBalloon Campaign
Free Europe-Balloon Campaign. Hop Schedules Box 44 Highlight Free Europe-Balloon Campaign. Hop Schedules Rare Book & Manuscript Library Imre Kovacs Papers, 1945-1980Series VI: Miscellaneous Material
Free Europe-Balloon Campaign. Analysis of Results Box 44 Highlight Free Europe-Balloon Campaign. Analysis of Results Rare Book & Manuscript Library Imre Kovacs Papers, 1945-1980Series VI: Miscellaneous Material