de Irigoyen in Buenos Aires)
Temmen - concerning his Navy service for the fatherland
Baudelaire"
concerning atomic spectroscopy - entitled "Allocation en 3e Congres International de Spectrométrie" (=Allocation in third International Spectrometry Congress)
of the 1st part (in the 2nd edition
Alt, Otmar Space & Aviation de Irigoyen in Buenos Aires)Signed book: `Otmar Alt Der Kirschbaum`, in German, published by Eremiten Presse, Dsseldorf, 1984, softcover book, 4,75 x 7,5 inch, 96 pages, signed and inscribed on the first page in blue ink "pour Renate Dassau Frohes Fest O. Alt" with an added sketch, in very fine condition.