THE NEW YORK TIMES, June 20, 1947

* Test pilot Albert Boyd
* United States Air Force
* Air speed record broken
* First jet fighter airplane

Near the bottom of the front page has a two column heading: "U.S. Jet Flies 623.8 Miles an Hour To Capture World Speed Record" (see images)
Complete with 42 pages, rag edition in very nice condition.

wikipedia notes: The prototype Lockheed P-80 Shooting Star, modified as a racer and designated P-80R,[2] was piloted by Colonel Boyd to 623.73 mph (1,004.2 km/h) on 19 June 1947. This was recognized as an official air speed record.