Be sure to visit our companion site, http://washingtondiplomatsnasl.weebly.com/ which contains Dips jerseys, game & player photos, media notes and memorabilia from 1974 - 1980.
Eric Martin wore a simple yellow jersey while playing in his last game at RFK against the Cosmos on August 6, 1977. Here is the backstory from the Dips Fan Club newsletter.