Category:1927 books about aviation

Books about aviation : ←; 1920; 1921; 1922; 1923; 1924; 1927; →

Media in category "1927 books about aviation"

This category contains only the following file.

A superheatmeter or differential thermometer for airships. (IA superheatmeter1927359stro).pdf 981 × 1,458, 20 pages; 1.45 MB

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