Signed First Day Cover. James J. "Crash" RYAN.

Signed First Day Cover.

Auto safety pioneer long before Ralph Nader popularized the topic in "Unsafe at Any Speed," this University of Minnesota mechanical engineering professor (1931-63) patented the first retractable safety seat belt in 1963 and the "black box" flight recorder in 1960; he also improved hydraulic bumpers, dashboards and collapsible steering columns. Signed First Day Cover, 6½" X 3½", cancelled in Baltimore, Maryland on 3 September 1965 and with "Firsy Day of Issue" boldly stamped. Single 5-cent "Stop Traffic Accidents" stamp at upper right. Fine. At lower left, beneath the postal cancellation, Ryan signs large and bold in blue ballpoint. Attractive and very scarce. Item #24360

Price: $100.00

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