NASA Photo ID: S81-29619
Date Taken: 04/06/81

STS-1 Pre-Flight Briefing - STS-1 Astronauts John W. Young, left, and Robert L. Crippen direct their attention to a chart on a screen in a small briefing room at the Johnson Space Center (JSC). They are taking part in a three-way telephone conference call, which involved engineers at JSC and at the Rockwell International facility in California.

Source: NASA photo in my possession