Show ELEVATOR MEN EXTEND STRIKE NEW YORK March 10 Building 10 Building service strikers opened their major offensive today when they extended extend extend- ed the walkout to the skyscrapers of U the e Grand Central area in Manhattan Manhattan Manhattan Man Man- hattan and to office and residential structures In Brooklyn rooklyn New Yorks York's most populous borough Approximately workers in fn buildings will be affected by bythe bytho bytho tho the strike extension union leaders said The new move was by way of reply to the realty advisory boards board's failure to accept Mayor Fiorello H. H La Guardias Guardia's arbitration plan which had proved satisfactory to the strikers My answer to the realty board h has s begun now v James J. J Bambrick strike chief declared in announcing the tho extension of ot the day 10 walkout This Is tho the major offensive George international vice president of ot the Building Service International union dispatched dispatched dispatched dis dis- patched sealed orders to union leaders leaders lead lead- ers in Brooklyn The strike in that borough is aimed at tall residential buildings along Ocean avenue and Ocean Parkway Office buildings in downtown Brooklyn also were a n. target of the strikers C Placard-bearing Placard pickets began pacing before the tho Bowery sayings savings banks the tho Metropolitan Life LUe Insurance Insurance Insurance ance company and the Prudential Life Lite Insurance company Within an hour after the extensIon extension extension exten exten- sion order was issued union officials said additional Important office structures had been affected Although Rockefeller Center a cluster of skyscrapers between Fifth and Sixth avenues in the Ms Is in the Grand Central area it was not affected because its workers are not organized |