Honest, this is a jamming contest, October 1st, 1921
photograph shows six young men and women wearing radio headsets, seated around a table, participating in a ‘jamming’ contest which requires the transmission of messages with the least number of errors; from left: BB Jackson (winner), E Laufer, A. Rechert, Miss Abby P. Morrison, Miss Sonia Sobert, and George Barrows