One of the worlds largest organs. Washington, D.C., April 16. One of the world's largest organs has just been completed at the Washington Cathedral, costing $80,000 and started in 1923, the organ will play for the first time Easter Sunday at the Washington Cathedral, Robert J. Barrow, the organist for the Cathedral is shown trying it out under the watchful eye of E.M. Skinner, the builder, 4/16/38