| Show Probe Body Calls Copper Officials NEW YORK June 2 l JP P cn- cn of oC the Anaconda Copper Mining Mining Min Mitt ing company and National City compan company com com- pany pan investment affiliate of the National National National Na Na- City bank have been sub- sub pen ed by William A. A Gray counsel for Cor the senate committee investigating the New York stock exchange to appear appear appear ap ap- ap- ap pear in Washington for questioning tomorrow it was learned today Pool activity in Anaconda stock during later stages of oC the bull market was recently a subject of oC testimony before the committee with Percy A. A Rockefeller as one of the witnesses It was testified that the pool had lost money in its operations Anaconda shares sold as high as in 1929 Their low for that year was |